Underground Historical Sites That You Can Tour
Introduction to Underground Historical Tours
Hey there! Are you ready to embark on a thrilling journey of discovery, exploring the mysterious underground historical sites hidden right under our feet? You’re not alone. More and more folks are delving into the depths to uncover these fascinating locations, each with its own wild tales and secrets.
Underground tours have taken off lately, offering a unique and immersive way to experience history firsthand. Imagine walking through labyrinths used for everything from escape routes to secret meetings and clandestine hideouts. It’s like stepping into another world, where every shadow has a story to tell, keeping you captivated at every turn.
What’s the big deal, you ask? These sites aren’t just dusty old relics but living pieces of our global history. They connect us directly to the past, offering an immersive experience you don’t get from history books. When you’re in the depths of these underground venues, it’s like being smack in the middle of history itself, feeling the pulse of the past.
Tour-wise, there are all sorts of ways to get your history fix. Whether you’re into guided tours and the chance to soak up stories from people who know the sites inside and out, or you prefer self-guided adventures where you can wander at your pace, there’s something for everyone. The options are as varied as the sites themselves.
So, if you’re ready to check out what’s lurking below the surface, keep your eyes peeled for what’s coming up. There’s plenty to explore and expect, and I’m here to be your guide through each twist and turn of these underground wonders.
Raufarhólshellir Lava Tunnel, Iceland
Step into the belly of the Earth—no exaggeration here. At Raufarhólshellir, you’re not just visiting a cave; you’re walking through a lava tube carved by a volcanic eruption over 5,000 years ago. Located just 30 minutes from Reykjavík, this tunnel is one of the largest of its kind in Iceland, and it’s every bit as dramatic as it sounds.
The moment you step inside, you’re surrounded by rock walls splashed with reds, oranges, and purples—traces of the fiery flow that once moved through here. Come in winter, and you’ll see glistening ice sculptures clinging to the ancient stone like nature’s own chandeliers. It’s raw, rugged, and incredibly atmospheric.
Guided tours lead you about 1,300 meters into the tunnel (no spelunking required), while knowledgeable guides share tales of Iceland’s volcanic legacy, how lava tubes form, and what this underground world tells us about the land above. There’s even a lighting system in place that adds a touch of drama without taking away from the natural vibe.
As for the details: standard tours run around ISK 7,400 for adults (roughly $50–60 USD), and they provide helmets and crampons when conditions are slippery. There’s also a longer, more adventurous “extreme” tour for those looking to explore deeper sections of the tunnel. Dress warmly—it stays chilly year-round—and prepare to be blown away, both literally and figuratively.
Copenhagen Cisterns, Denmark
What happens when you mix industrial history with modern art and a dash of eerie ambiance? You get the Cisterns of Copenhagen—a 19th-century water reservoir turned underground art space tucked beneath Søndermarken Park. This isn’t your typical gallery. It’s cool, damp, echoey, and downright mesmerizing.
Originally built in 1856 to store the city’s drinking water, the Cisterns have since been transformed into a moody venue for contemporary art installations. But don’t expect white walls and clean lines—here, artworks interact with the natural drips, shadows, and silence of the space itself. The result? A hauntingly beautiful blend of old-world architecture and avant-garde creativity.
Whether you’re strolling solo or joining a guided tour, the experience is immersive from the moment you descend into the dim, candlelit corridors. The exhibitions change regularly and often play with light, sound, and movement to reflect the cistern’s unique acoustics and atmosphere. It’s one of those rare spots where the space is just as much the attraction as the art.
Tickets cost around DKK 115 for adults (roughly $16 USD), and the site is open seasonally—usually from spring through autumn. Make sure to check ahead, as the exhibitions can be quite popular. Bring a jacket, wear sturdy shoes, and prepare to feel like you’ve stepped into another dimension—one that just happens to be hiding under a city park.
The Edinburgh Vaults, Scotland
Imagine exploring vaults with a past as dark and layered as their own walls. That’s the Edinburgh Vaults for you. Built-in the late 18th century, these hidden chambers under South Bridge have seen everything from bustling tradesmen’s workshops to infamous hideouts.
Over time, their history took a shadier turn, housing illicit activities and becoming a haven for less-than-savory characters. Over the years, legends have taken on a life of their own, adding a layer of intrigue and spookiness to these underground halls.
You’ll find the entrance to the vaults tucked away in Edinburgh’s Old Town, a place that itself feels like a doorway to the past. The ghost stories alone make this site irresistible, not to mention the incredible architectural features that have stood the test of time.
Several tour operators offer day and night tours of the vaults, diving into their eeriest tales and showcasing the labyrinthine passages. Guides are often storytellers at heart, mixing historical facts with a bit of dramatic flair to keep you on your toes.
Tour prices generally start around £13, though they vary based on whether you want a standard tour or something more theatrical like a ghost tour. Booking ahead is smart, as these tours can fill up fast—especially those after dark. So, if you’re game for a stroll through Edinburgh’s spookiest corners, this is the underground adventure to embark on.
Mary King’s Close, Scotland
Beneath the Royal Mile in Edinburgh, past the pubs and souvenir shops, lies a forgotten street with a chilling past—Mary King’s Close. This once-bustling lane was sealed off during the plague outbreaks of the 17th century, and today it’s a preserved time capsule of shadowy alleys, crumbling homes, and whispered legends.
You won’t be exploring alone. Theatrical guides in period costume lead you through the warren of underground rooms and staircases, telling tales of plague victims, merchants, and myths that blur the line between history and haunting. It’s part ghost tour, part historical drama, and all spine-tingling atmosphere.
Every corner of Mary King’s Close feels frozen in time—from the soot-stained walls to the cramped, low-ceilinged rooms where families once lived (and sometimes died). There’s even a room filled with toys and tributes left for a child ghost named Annie—equal parts eerie and oddly touching.
Tours cost about £19.50 for adults, and pre-booking is recommended, especially during Edinburgh’s busy festival season. Photos aren’t allowed inside (to preserve the mood), so it’s all about being present and soaking in the stories. If you’re drawn to gritty history with a supernatural edge, this is your must-see stop in Scotland.
The London Underground, England
Beneath the bustling streets of London lies more than just a transit system; it’s a historical network with tales as rich and varied as the city above. The London Underground, or the Tube, is famed for being the world’s first underground railway, opening way back in 1863 and revolutionizing urban transport forever.
More than a mere subway system, the Tube is a testament to technological advancement and perseverance. It has played vital roles throughout history, including during wartime when it doubled as an air-raid shelter. Its architectural feats, including the Art Deco designs in some stations, are still admired today.
Navigating the Tube is an adventure in itself. With stations as iconic as King’s Cross and Baker Street, history geeks have plenty to uncover just by hopping from stop to stop. However, specialized tours are available for those interested in its hidden history, delving into decommissioned stations or engineering secrets that keep the city moving.
Tour options vary, with some focusing on the historical aspects and others offering ghost tours that explore the eerie tales lingering in the tunnels. Prices depend on the type of tour and can range from £15 upwards, with specialized tours offering an immersive look at the London of the past.
For those planning a visit, an Oyster card is your best bet for navigating the city efficiently and accessing public transport. If you’re keen on learning about one of London’s most significant historical marvels, diving into the rich tapestry of the Tube offers insights you might not get from the surface.
City of Caves, Nottingham, UK
Think Nottingham is all Robin Hood and castles? Think again. Beneath the city’s modern streets lies a hidden labyrinth of over 500 man-made caves, carved into soft sandstone over the course of a thousand years. This isn’t fantasy—it’s the City of Caves, and it’s one of the UK’s most surprising underground adventures.
The tour takes you through just a slice of this sprawling subterranean world, but what you see is packed with intrigue. Medieval tannery pits, Victorian slums, air raid shelters from WWII—each space tells a gritty, layered story of how people used these underground chambers for survival, industry, and shelter.
Guides walk you through the shadowy tunnels with a mix of historical insight and street-level storytelling, shining a light (sometimes literally) on the city’s past from the bottom up. Whether you’re standing in the remains of a medieval workshop or ducking into a wartime hideout, the experience is raw, tactile, and totally immersive.
Admission runs about £9.50 for adults, and tours start from the Broadmarsh area, easily accessible from the city center. It’s cool and a bit damp underground, so pack a jacket and wear sensible shoes. This is Nottingham like you’ve never seen it—layered, lived-in, and hidden in plain sight.
Burlington Bunker, UK
Deep beneath the sleepy hills of Corsham, Wiltshire lies one of Britain’s most extraordinary Cold War secrets—Burlington Bunker, also known as “Site 3.” This massive underground complex was built to serve as the emergency government headquarters in the event of nuclear war. Think of it as a subterranean city, complete with dormitories, hospitals, canteens, and even a phone exchange—all sealed beneath 60 meters of stone.
Constructed in the 1950s at the height of Cold War paranoia, Burlington was kept under tight wraps for decades. Its existence wasn’t officially acknowledged until well after the threat had passed. Designed to house up to 4,000 people, it had everything needed to keep the British government functioning while the world above crumbled.
Today, it’s mostly off-limits to the general public, but on rare occasions, limited-access tours are offered—usually by special arrangement or through historic preservation events. If you’re lucky enough to snag a spot, you’ll walk through dimly lit corridors that once buzzed with secrecy, viewing eerily intact rooms frozen in mid-century time. It’s like stepping into a retro-futuristic time capsule built for survival.
Since access is extremely limited and dates are irregular, your best bet is to keep an eye on heritage websites and local announcements. If you manage to get in, it’s not just a tour—it’s a once-in-a-lifetime glimpse behind the Iron Curtain of British preparedness.
King Arthur’s Labyrinth, Wales
Step aside, Merlin—there’s a new way to experience Arthurian legend, and it involves drifting through shadowy tunnels beneath the mountains of Snowdonia. Welcome to King Arthur’s Labyrinth, where myth, history, and a little theatrical magic collide in a disused slate mine turned underground storytelling adventure.
Your journey begins with a hooded boatman who ferries you across a subterranean river and into the heart of Welsh folklore. As you wind through the cool, torch-lit tunnels, dramatic scenes unfold around you—complete with sound effects, lighting, and larger-than-life storytelling. It’s part guided tour, part immersive performance, and 100% spellbinding.
The tales are rooted in ancient Celtic myths, with nods to dragons, brave warriors, and magical swords. It’s a hit with families, but honestly, anyone with a love for legends and a flair for the dramatic will be enchanted. And bonus: the labyrinth lies within Corris Craft Centre, where you can explore artisan studios and grab a bite after your underground quest.
Tickets start around £13.50 for adults, with family passes available. Tours run regularly from spring through autumn, though it’s smart to check availability in advance—especially during summer holidays. Dress warmly and wear good shoes; the tunnels can be chilly and damp, just like any self-respecting ancient cave of wonders.
Salt Mines of Wieliczka, Poland
Wieliczka Salt Mine isn’t just an underground wonder—it’s a Polish treasure recognized globally. Operating since the 13th century, it combines stunning natural beauty with fascinating historical narratives.
This UNESCO World Heritage site has over 300 kilometers of tunnels, though just a small fraction are open to the public. Visitors can marvel at intricate chapels, sculptures, and even chandeliers, all carved from salt. Every corner of this subterranean labyrinth reveals the artistic dedication of the miners who transformed it into a wonderland.
Located near Krakow, the salt mine is easily accessible by train or bus within a short jaunt from the city. Once there, be prepared for a mesmerizing tour that takes you deep into the earth.
Tour options cater to all interests. The Tourist Route offers a more traditional sightseeing experience with insightful guides. At the same time, the more adventurous can embark on the Miners’ Route, donning hardhats and getting a taste of a miner’s life.
Ticket prices vary, with the basic Tourist Route starting at around 89 PLN. For those aiming to enrich their visit, guided tours with additional experiences are available but naturally come at a higher cost. It’s a popular spot, so booking in advance is a smart move to ensure your spot underground.
Visiting the Wieliczka Salt Mine is like stepping into another world—one that illuminates Poland’s rich history and enduring legacy. Whether you’re drawn by the art, history, or engineering marvels, this is one detour off the beaten path you won’t regret.
Postojna Cave, Slovenia
Ready to hop on a train and ride straight into a fairytale? At Postojna Cave in Slovenia, you don’t just walk into wonder—you glide in on a miniature railway that whisks you through one of Europe’s most spectacular underground worlds. This karst cave system is vast, dramatic, and downright enchanting.
With over 24 kilometers of tunnels, galleries, and halls carved by nature over millions of years, Postojna isn’t just big—it’s cinematic. Stalactites hang like chandeliers, stalagmites rise like stone soldiers, and underground rivers whisper beneath the pathways. The train ride alone is worth the trip, but the real magic begins when you step off and start the walking tour.
Postojna’s history as a show cave dates back to 1818, and it’s welcomed everyone from curious travelers to European royalty. Guides lead you through its iconic formations while weaving in fascinating tales—like the discovery of the mysterious olm, a pale, blind amphibian nicknamed the “baby dragon” by locals. These little creatures add an extra dash of myth to an already legendary destination.
Tours last about 90 minutes and run year-round. Adult tickets start around €25, with combo passes available if you plan to visit nearby Predjama Castle (which is literally built into a cliff). It’s an easy day trip from Ljubljana or the coast, and well worth the detour. Just bring a jacket—it’s a cool 10°C (50°F) inside, no matter the season.
Salina Turda, Romania
What do you get when you combine medieval mining history with modern-day fun? The spectacular Salina Turda—a Romanian salt mine turned underground amusement park, museum, and geological marvel all rolled into one jaw-dropping cavern.
Located in Transylvania, this former salt mine dates back to the 13th century, but it’s what’s inside now that truly stuns. Descend into vast chambers where salt-streaked walls rise like cathedral spires, and you’ll find an unexpected playground waiting for you: an underground lake with rowboats, a mini-golf course, a Ferris wheel, and even a subterranean amphitheater that hosts concerts and events in echoey, salt-rich air.
But it’s not all about the fun—there’s plenty of substance, too. The site includes exhibits on the history of salt mining, geological formations, and the therapeutic properties of the salty microclimate. It’s equal parts science museum, theme park, and wellness retreat, and yes—it’s as wild and wonderful as it sounds.
Entry costs around 50 RON for adults (about $10–12 USD), and the mine is open year-round. Dress in layers—the temperature stays a steady 10–12°C (50–54°F) inside—and wear comfortable shoes for walking through its vast, echoing chambers. Whether you’re in it for the photos, the history, or just the chance to ride a Ferris wheel underground, Salina Turda is pure magic.
The Catacombs of Paris, France
A hauntingly beautiful maze known as the Catacombs is tucked beneath the streets of Paris. Built originally in the late 18th century, these underground ossuaries hold the remnant bones of over six million Parisians, all neatly packed into macabre displays. It’s a chilling yet fascinating glimpse into how the city has handled its dead over the centuries.
These catacombs started as limestone quarries before getting their big gig as a burial site. In the late 1700s, Paris faced an interesting problem: its cemeteries were full to bursting. Bringing all those bones down into the former quarries was both practical and, let’s face it, uniquely Parisian in style. The catacombs have become a key part of the city’s history, giving us insight into its urban development and cultural evolution.
The Catacombs are nestled deep beneath the 14th arrondissement, right near the Denfert-Rochereau metro station for those planning to visit. It’s not a place you’d mindlessly stumble across, which kinda adds to the thrilling, secretive vibe this place has going. Once you’re in, you’ll be greeted by endless rows of bones and skulls artistically stacked.
Tour options for the Catacombs cater to brave solo wanderers and those who want the comfort of a guide. A self-guided tour lets you take in the eerie sights at your own pace, diving into the rich historical context via information panels and audio guides. Guided tours are available for those who prefer having tales spun by a pro and offer anecdotal snippets that only locals might know.
Now, let’s talk numbers. Admission is about €14 for adults if you’re flying solo, with guided tours costing a bit more. Ticket prices and opening hours can vary, so checking their website ahead of time is your best bet. Remember, skip-the-line tickets are a lifesaver during peak tourist times!
The Roman Catacombs, Italy
Below the bustling streets of Rome lies an entirely different world, steeped in history and mystery, known as the Roman Catacombs. Used mainly between the 2nd and 5th centuries, these underground burial sites are significant for the early Christian communities who couldn’t bury their dead openly during times of persecution.
The catacombs served as burial places and secret meeting spots where early Christians could gather and worship, safe from prying eyes. In these tunnels, incredible pieces of early Christian art come to life, from delicate frescoes to extravagant carvings that have survived the ravages of time.
Winding through the outskirts of Rome, the catacombs are a short trek from the city center, nestled just outside the old city walls. Plan your visit carefully, as specific catacombs are open to the public, each with its unique charm and history.
Visitors can choose between guided tours—perfect for those who want in-depth insights and stories from knowledgeable guides—or self-directed exploration for a more personal journey through history. Both offer a meaningful peek into the ancient Christian world.
Regarding pricing, tickets for a basic tour can start at around €8, with guided tours coming in a bit higher. These tours can get quite popular, so it might be wise to grab tickets in advance, especially in high season. With layers of history packed into their depths, the Roman Catacombs present an unmissable experience for those interested in Italy’s rich past.
Port Wine Cellars, Porto, Portugal
Beneath the hills of Porto—and technically across the river in Vila Nova de Gaia—lies a treasure trove of history, tradition, and, let’s be honest, really good wine. These Port wine cellars are more than just storage spaces; they’re atmospheric, barrel-lined vaults where some of the world’s finest fortified wines slowly mature in oak and time.
Step inside and you’re instantly enveloped in the earthy scent of aging wine and centuries-old wood. Each cellar has its own story, but they all share deep roots in Porto’s identity. You’ll learn how Port wine is made—from grape to glass—while wandering past rows of enormous barrels, cool stone walls, and dimly lit tunnels that have changed little over the decades.
Guided tours are the norm and often led by passionate locals who know their vinho inside and out. Expect a crash course in the different Port styles (ruby, tawny, vintage), a peek into the aging process, and, of course, a tasting or two at the end. It’s educational, yes—but also rich, flavorful, and just a little bit indulgent.
Tours vary by cellar, but most cost between €10–€25, depending on how fancy your tasting gets. Some cellars, like Sandeman, Graham’s, or Taylor’s, offer premium tastings with food pairings or river views. Booking ahead is smart, especially in high season. And don’t worry if you don’t know your tawny from your vintage—by the end, you’ll be sipping like a local.
Portuguese Cistern, El Jadida, Morocco
If you’ve ever wanted to walk through a real-life reflection of history—literally—then the Portuguese Cistern in El Jadida is your kind of place. This atmospheric underground chamber was once a water reservoir, but today it feels more like a hidden cathedral of stone, silence, and shimmering light.
Built in the early 1500s by the Portuguese, this vaulted chamber served as part of the old fortified city of Mazagan, now a UNESCO World Heritage Site. The cistern’s fame skyrocketed after it appeared in Orson Welles’ Othello—and it’s easy to see why. When water trickles across the floor, it turns the ceiling into a perfect mirror, creating a surreal, cinematic experience you don’t need special effects to appreciate.
This is a self-guided stop, and honestly, that’s part of the magic. You step inside and let the space speak for itself—its cool air, echoing arches, and shifting reflections do all the storytelling. It’s a short visit, but a memorable one, especially for photographers and daydreamers alike.
Admission is modest—around 20 Moroccan dirhams (just a couple of dollars), and it’s located right inside the old Portuguese fortress. It’s an easy detour if you’re exploring El Jadida’s medina or strolling along the coastal ramparts. Just bring a camera, and maybe a moment to stand still and take it all in.
Cappadocia Underground Cities, Turkey
Imagine ancient cities carved entirely underground, hidden beneath the breathtaking landscapes of Turkey’s Cappadocia region. The underground cities of Derinkuyu and Kaymakli are masterpieces of ancient engineering and a testament to the resourcefulness and creativity of past civilizations.
Originally built around the 7th and 8th centuries B.C., these cities offered refuge from invaders and housed thousands of people at once. The network of tunnels and rooms includes kitchens, stables, churches, and even ventilation shafts, showcasing an advanced understanding of architecture and community planning. It’s incredible to think about how entire populations managed to live, work, and worship beneath the earth.
Location-wise, these cities are nestled within the stunning lunar landscapes of Cappadocia, a region famous for its fairy chimneys and hot air balloon rides. Finding them isn’t tough, as the surrounding towns thrive on tourism, with plenty of signs and local tours.
Once you’re set to explore, you’ll find both guided and self-guided tours available. Guided tours can be particularly enlightening. They are often run by those with familial ties to the region, adding a personal touch to the tales and legends. Self-guided tours come with detailed information, ideal for the independent adventurer.
When it comes to the wallet, expect to shell out around 35 Turkish Lira for a general admission ticket. Guided tours are understandably pricier, but the extras you get—like stories passed down through generations—might justify spending. Pre-booking is advisable, especially during peak travel seasons when the allure of these subterranean cities draws crowds from all over the globe.
The Cu Chi Tunnels, Vietnam
Beneath Vietnam’s serene countryside lies a sprawling network that played a pivotal role during the Vietnam War—the Cu Chi Tunnels. These tunnels, which stretched over 250 kilometers, were a crucial part of the Viet Cong’s war strategy, serving as living quarters, supply routes, and even hospitals.
Digging into history, these tunnels showcase the ingenuity and resilience of the people who constructed them with basic tools. This web of tunnels allowed fighters to launch surprise attacks and then vanish underground, a tactic that baffled their opponents.
The Cu Chi Tunnels are located just northwest of Ho Chi Minh City, making for a convenient day trip from the city. Visitors can explore some sections of these tunnels that have been widened for comfort but still capture the sense of being in an underground world.
Guided tours are the way to go if you want to fully grasp their historical significance. Guides recount the history and weave in personal stories and local legends, bringing the experience to life in vivid color.
Entry fees are roughly 110,000 VND, with additional costs for guided trips. It’s a popular spot, so early visits or pre-booking can enhance the experience and avoid the crowds.
The Shanghai Tunnels, Portland, Oregon, USA
Beneath the vibrant streets of Portland, Oregon, lies a network known as the Shanghai Tunnels. These passages have sparked numerous stories and, quite frankly, intrigue that entices locals and visitors.
Historically, these tunnels connected the basements of downtown bars and hotels to the Willamette River docks. The lore goes that shady characters would use these routes for illicit activities, including the practice of Shanghaiing, where unsuspecting victims were allegedly kidnapped and forced into maritime service.
While the tales might be more local legend than hard fact, the tunnels still offer a unique window into Portland’s past, highlighting a time when the city was a gritty haven for sailors and opportunistic entrepreneurs.
The entrance to these tunnels is quirky and unassuming, fitting the mystique of the famously “weird” Portland. Tours through these passages generally include a mix of fact, folklore, and even a few ghost stories to spice things up.
Guided tours are the go-to choice here, as professional guides unravel the myths from the realities and share the tunnel’s colorful history. These tours’ prices vary, usually around $20, and they tend to fill up quickly given the tunnels’ allure.
Planning your visit ahead of time can ensure a spot on one of these popular tours. Whether you’re in it for the history or the thrill of Portland’s underground secrets, the Shanghai Tunnels offer a unique dive into a lesser-known part of American history.
Greenbrier Bunker, USA
Tucked under the elegant Greenbrier Resort in West Virginia is something you’d never expect from a place known for its golf courses and spa treatments—a massive Cold War-era bunker built to house the entire U.S. Congress in case of nuclear catastrophe. It’s the kind of place that sounds like fiction, but every inch of it is very, very real.
Constructed in the late 1950s under a veil of strict secrecy, this sprawling underground facility—code-named “Project Greek Island”—was hidden in plain sight for over 30 years. Behind reinforced blast doors, you’ll find dormitories, medical rooms, a cafeteria, power plant, and meeting halls that look frozen in time, straight out of a government-issued time capsule.
The secret came out in 1992, and ever since, the bunker has been open for public tours. Walking through it feels like stepping into a Cold War thriller—minus the danger, but with all the drama. Knowledgeable guides walk you through its history, architecture, and the massive logistical planning that went into keeping this contingency plan hidden for decades.
Tours typically cost around $40 per adult, and photography isn’t allowed—so you’ll have to soak it all in with your own eyes. Reservations are required, and space is limited, so booking ahead is a smart move. Whether you’re a history buff, a politics nerd, or just love a good real-life spy story, this hidden gem delivers intrigue in spades.
Butte Underground Tunnels, Montana, USA
Think Montana is all cowboys and open plains? Think again. Beneath the historic streets of Butte lies a web of underground passageways that once buzzed with everything from brothels to bootleggers. Welcome to the Butte Underground Tunnels, where the grit of the Wild West meets Prohibition-era intrigue—with just the right amount of scandal.
Back in its heyday, Butte was a booming mining town, and the tunnels were the hidden lifelines of a rough-and-tumble society. Down here, you’ll find the remnants of Chinese apothecaries, illegal speakeasies, secret brothels, and businesses that kept the town’s underbelly running. The stories? As rich as the copper that built the city above.
Guided tours bring this shadowy past to life with a mix of humor, historical depth, and a bit of cheeky storytelling. You’ll explore authentic sites like the old jail, barber shops, and a once-bustling Chinese laundry, all frozen in time beneath modern-day Butte. It’s immersive, eye-opening, and proof that you never know what’s hiding beneath small-town streets.
Tours usually cost around $20 per adult, and they run seasonally from spring through fall. Butte’s downtown is full of character, so it’s worth spending a bit of time topside too. Just make sure to bring comfy shoes—and maybe an appetite for local lore, because these tunnels don’t pull any punches.
Seattle Underground, USA
Think your city has layers? Seattle takes that literally. Hidden beneath the bustling streets of Pioneer Square lies a quirky slice of history—the original Seattle, buried after the Great Fire of 1889 and now revealed through the unforgettable Seattle Underground Tour.
Back in the day, this lower level was street-level, filled with wooden sidewalks, storefronts, and saloons. But after the fire wiped much of it out, the city decided to rebuild—just one story higher. That left behind a shadowy underworld of old buildings, passageways, and stories just waiting to be told. Today, it’s like walking through a ghost town that’s still very much alive with character.
The tour itself is part comedy act, part history lesson, and all charm. Witty guides walk you through the tunnels with a blend of irreverent humor and fascinating facts about Seattle’s early days, its engineering hiccups, and the colorful cast of characters who made the city what it is. It’s the kind of tour where you’ll laugh, learn, and maybe leave with a newfound appreciation for indoor plumbing.
Tickets run about $25 for adults, and tours last around 75 minutes. Wear comfy shoes and prepare to duck here and there—ceilings get a little cozy in spots. This is Seattle at its most offbeat and unforgettable, and it’s perfect for history lovers, urban explorers, and anyone who likes their sightseeing with a twist of rebellion.
The Tunnels of Moose Jaw, Saskatchewan, Canada
Let’s head to the Canadian Prairies for a hidden gem packed with history, legend, and a good dose of drama—the Tunnels of Moose Jaw. Nestled beneath the unassuming streets of this small Saskatchewan city lies a network of passageways that tells three very different stories: one of Chinese immigrants struggling to survive, another of Prohibition-era bootleggers living large, and the third a 1950s bomb shelter with 1950s propaganda.
These underground tours aren’t just your standard walk-through-the-basement experience. Moose Jaw has taken storytelling to the next level by turning its tunnels into interactive theatrical tours. You don’t just learn about history here—you live it. Costumed actors bring the past to life as you follow them through the tunnels, stepping into scenes that echo the tension, grit, and spirit of the early 20th century.
There are three main tours to choose from: Passage to Fortune, which gives a sobering and respectful look at the hardships faced by Chinese immigrants who lived and worked underground to escape discrimination; and The Chicago Connection, a more fast-paced, entertaining glimpse into Moose Jaw’s legendary connection to none other than Al Capone during Prohibition. Rumors say he used the tunnels as part of a smuggling operation. Fact or fiction? You’ll have to decide for yourself. The third tunnel, Bunker 24, looks into 1950s culture and propaganda as you tour a 1950s nuclear shelter.
You’ll find the entrance to the tunnels right downtown, cleverly disguised behind storefronts—another nod to their once-secretive nature. Tours are offered year-round and usually last about 50 minutes each. It’s wise to book in advance, especially in summer when visitors flock to this quirky and unforgettable attraction.
Ticket prices vary by tour but generally hover around $20–25 Canadian dollars for adults, with discounts for children, students, and seniors. Trust me—this is one underground adventure that’s well worth the ticket.
Whether you’re drawn by the tales of smuggled whisky or stories of resilience in the face of adversity, the Tunnels of Moose Jaw offer a unique and theatrical dive into Canada’s underworld past.
Salt Cathedral of Zipaquirá, Colombia
If you thought churches were always above ground, think again. Just outside Bogotá, tucked deep within a working salt mine, lies the awe-inspiring Salt Cathedral of Zipaquirá—a stunning underground sanctuary that feels more like a spiritual journey than a tourist stop.
This isn’t your average cathedral. As you descend through the cool, dimly lit tunnels, you’re led through the 14 Stations of the Cross, each one carved into walls of ancient salt. The path opens into a vast, cross-shaped nave where a towering illuminated cross presides over a peaceful, echoing chamber. It’s grand, humbling, and unlike anything you’ll find above the surface.
Part cathedral, part geological wonder, and part underground art gallery, the Salt Cathedral blends faith, Colombian culture, and engineering brilliance. The current structure was inaugurated in 1995, replacing an older version built in the 1950s, and stands as both a place of worship and a powerful symbol of human creativity meeting natural beauty.
Guided tours (available in English and Spanish) bring the space to life with stories of its construction, symbolism, and spiritual significance. There’s also an interactive museum and a light show that adds a modern twist to the experience.
As for costs, entry is about COP 60,000–70,000 for adults (roughly $15–20 USD), with combo tickets available if you want to tack on the museum or mining experience. It’s a short drive from Bogotá and easily accessible via tour or train. Comfortable shoes, a light jacket, and a sense of wonder? Highly recommended.
Waitomo Caves, New Zealand
If you’ve ever wanted to feel like you’ve stepped into a galaxy underground, the Waitomo Caves are your ticket to the stars—well, sort of. Tucked away in the rolling hills of New Zealand’s North Island, these caves are famous for their glowing inhabitants: the Arachnocampa luminosa, a species of glowworm that turns the pitch-dark cave ceilings into a starry nightscape you’ll never forget.
The story here goes back over 30 million years, when underground rivers began carving their way through the region’s limestone, creating a complex and otherworldly cave system. Today, it’s a surreal combo of nature’s architecture and bioluminescent magic. The glowworms aren’t just the cherry on top—they’re the whole show.
Visitors can explore the caves in a few different ways, but the most iconic experience? A guided boat tour that glides silently through the darkness beneath twinkling ceilings, like you’re drifting through space. Along the way, local guides share Maori myths, stories of exploration, and fascinating tidbits about the cave’s geology and history. It’s peaceful, mesmerizing, and just a touch mystical.
As for practicals: general admission for the glowworm cave starts around NZD $60 for adults, with combo tours available if you want to add in abseiling, tubing, or spelunking adventures through the deeper cave systems (for the thrill-seekers out there). Tours depart regularly, but booking ahead—especially in summer—is a smart move. And don’t forget: comfy shoes and a sense of wonder are must-brings.
Final Thoughts: What Lies Beneath
There’s something undeniably captivating about stepping below the surface—beneath a bustling city or a quiet prairie town. These underground spaces hold stories that are equally eerie, inspiring, and unforgettable. From ancient burial sites and secret meeting places to tunnels that once echoed with whispered plans and heavy footsteps, each site offers a unique way to connect with the past. Whether you’re chasing ghost stories, marveling at architectural feats, or simply looking to walk through history in a new way, these underground tours provide a unique adventure. So next time you travel, consider looking down—you never know what mysteries are waiting just below your feet.
Click on the image below to go to Tour Radar and search for the best tours of each of these locations. You can enter filters that are appropriate (age, activity level, number of days, cost, etc).
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