Largest Underground

Go underground on a 1-hour walking history tour through Seattle's original neighborhood. Our experienced guides lead small groups through, and beneath, Pioneer Square to the street level that existed in the 1890s. Explore underground pathways that were built more than 120 years ago, learning details on early Seattle history, why these spaces were built, and how they have been used (and misused) over the years. Marvel at how this once Indian encampment has since transformed into one of the 20 largest cities in the United States. 

This is the only tour in Portland that takes you underground in the Shanghai Tunnels. Under our restaurant and taproom is the largest intact area of the legendary Shanghai Tunnels, where we are the exclusive tour provider. Learn about Portland's dark history and hear stories about our resident ghost, Nina. Finish up with special beer tasting and 1 pint of our internationally award-winning beer. Named One of the Most Haunted Places in America by Conde Nast, USA Today, Thrillist, Cosmopolitan Magazine and more. Featured on The Travel Channel. Must be 21+ other than 2 & 3pm tour.

Join us on a walking tour of Cincinnati to learn about Cincinnati's hidden history on one of the Top Five Underground Tours in the U.S. Enjoy a stroll through Over-the-Rhine, home to America's largest set of historical landmarks. Visit buildings in the Gateway District that were home to over 130 saloons, bars, beer gardens, and theaters. Then, descend below the city streets for exclusive access to a hidden crypt where some of Cincinnati's first residents were buried. Next return underground to explore hidden tunnels vital to Cincinnati's brewery heritage at the Kauffman Brewery. Tours will go on rain or shine!

This experience takes you to the only underground GOLD mine tour in the state of Alaska. Underground Juneau Gold is a unique tour of what was once the worlds largest gold producing mill. Hear the story of the great mine that was once the heartbeat of Juneau.

Explore the world’s largest subway system, the beating heart of the city that never sleeps. – See the architectural ghosts of the nearly forgotten and partially abandoned, Chambers Street station nicknamed the “Grand Central of Downtown” – Discover the remnants of Union Square Station as you learn about a hidden art installation thousands of riders walk by everyday – Use the 6 train as your own time machine as you ride through abandoned subway stations that most seasoned NYC commuters don’t know exist – Explore the birth of the NYC subway system through amazing archival photos not available to the public – Learn about the comically short route of the mythical “Subway before the Subway,” Alfred Ely Beach’s Pneumatic Transit System Guests will need one MetroCard swipe or OMNY tap to enter the subway. Please note that although you will see abandoned subway stations from the train, the Metropolitan Transit Authority (MTA) doesn't grant public access into them under any circumstances.

This is a description of a private Cappadocia tour offered in Turkey. The tour is customizable and can be tailored to the preferences and interests of individual travelers. The tour includes VIP transportation and a knowledgeable, licensed guide. The tour will visit popular sights in Cappadocia, such as the Goreme Open Air Museum, Underground City, Uchisar Castle, Devrent Valley, and Pasabaglar Valley. The tour is a full-day experience and is designed to provide a comprehensive introduction to the unique and stunning beauty of Cappadocia. **Visit the villages, valleys, and rock formations of Cappadocia **Be amazed by the underground city **Round-trip hotel transfers included **Enjoy the convenience of private transportation

Exploring the PATH in Toronto offers a unique and convenient way to experience one of the city's hidden gems. As the world's largest underground shopping complex, the PATH stretches over 30 kilometers and connects more than 1,200 retail stores, restaurants, and services. Taking a tour of this subterranean network not only provides a chance to discover its impressive scale and diverse offerings but also helps you navigate Toronto's bustling downtown with ease. Beyond the shopping and dining options, the PATH is an architectural marvel with a fascinating history. A guided tour can reveal the intricate design details, highlight notable landmarks, and offer insights into how this underground labyrinth evolved to become a crucial part of Toronto’s urban landscape. Whether you’re a local looking to uncover a new aspect of your city or a visitor wanting to make the most of your time, a PATH tour combines practicality with an intriguing journey through Toronto’s vibrant downtown core.

To truly understand Rome, we must dig downwards. Explore underground passageways and discover the secrets of the largest catacombs in Rome with this small group walking tour. Your expert historian guide will explain how this network of sacred tunnels is associated with the first Christians in ancient Rome. Listen to stories about the roots of Christianity’s most enduring rites and rituals as you wander through ancient passageways containing over 150,000 bodies and stretching over 17 kilometres. This small group, personal experience is not to be missed.

Discover the secrets of Rome's underground and explore the largest catacombs in Rome with an expert guide. Descend into the large complex of underground tunnels that make up the catacombs of Domitila. Hear the stories behind the earliest Christian rites and rituals and marvel at ancient artworks. We will explore several parts of the catacombs learning about death in ancient Rome and see crypts with pagan and Christian decorative themes including the tomb of Diogenes, a grave digger who created the endless corridors of graves.

Discovered in 1952, the Cave itself sits 200ft (70 m) below the Burren limestone landscape. Equipped with a hard hat and in the hands of an experienced and knowledgeable guide, you’ll take the journey through an intricate system of passages and pathways, learning as you go how the Cave was formed. It’s an awe-inspiring experience – and you’ll immediately feel the excitement and wonder of the Cave’s early explorers and adventurists, way back when. As you complete your descent, prepare for a moment of eerie calm, pitch black and complete silence – giving way to a sudden flood of light within the majestic cathedral-like dome of the Cave. The force of nature that is Europe’s Largest Stalactite takes centre stage: a vast structure reaching down from the roof of the Cave, catching the light, reflecting colours and detail like a massive, ornate glass chandelier. This showstopper is 7.3 metres long and weighs around 10 tonnes. An unforgettable experience.

In the Old Town Hall’s enigmatic underground we will discover not only former Romanesque and Gothic houses, but even an original street. The labyrinthine subterranean system is older than the Town Hall itself, and the complex of medieval halls, passages and tunnels is the largest of its kind in Prague. At the point where the unspoilt streets of Prague’s Old Town give way to the redeveloped Jewish Quarter, you will see how Prague progressively grew in height.

This is the perfect tour for a Toronto Experience during winter time. We'll take you to all the landmarks our city is famous for and hidden gems through a unique insider look. PATH is the world’s largest underground shopping complex located in the downtown core. The PATH encompasses 32 kilometers (20 miles) connecting over 70 office buildings, six subway stations, eight hotels, and a railway terminal. In this Winter Experience Tour, we will visit must-see attractions using the PATH system such as the Hockey Hall of Fame, Brookfield Place, Union Station, and plenty of other secret spots. The tour finishes before the famous ice rink at Nathan Phillips Square.

Beneath Cappadocia's crumbling surface, a marvel of equally gargantuan proportions lay hidden away for centuries; a subterranean city that could conceal the whereabouts of up to 20,000 inhabitants for months at a time. The ancient city of Elengubu, known today as Derinkuyu, burrows more than 85m below the Earth's surface, encompassing 18 levels of tunnels. The largest excavated underground city in the world, it was in near-constant use for thousands of years, changing hands from the Phrygians to the Persians to the Christians of the Byzantine Era. It was finally abandoned in the 1920s by the Cappadocian Greeks when they faced defeat during the Greco-Turkish war and fled abruptly en masse to Greece. Not only do its cave-like rooms stretch on for hundreds of miles, but it's thought the more than 200 small, separate underground cities that have also been discovered in the region may be connected to these tunnels, creating a massive subterranean network.

Have you ever wanted to explore an underground city? Toronto has the largest underground shopping complex and over 30 kilometers (19 miles) of walkways in the world that connects many of Toronto's most important and historic sites. Take a tour of this lesser explored underbelly of Toronto's downtown district. 95% of the tour is indoors, so recommended during those cold winter months!

Explore the largest underground wine cellars in the Southern Hemisphere and discover the story behind the making of Australia's very own Sparkling Shiraz. Your guide will share the fascinating stories from the historic cellars, including tales of the previous owners and the wines they developed.

World Record-Holding Cellar Guinness World Records: Mileștii Mici holds the title of the largest wine cellar globally, with a staggering collection of over 1.5 million bottles of wine. Size: The underground cellars stretch an impressive 200 kilometers, with 55 kilometers accessible for guided tours. Visitors can choose to walk or drive through this extraordinary wine "city." A Unique Experience This isn't just a wine cellar—it's a sprawling underground labyrinth, offering an immersive journey into the world of winemaking on an unparalleled scale. A Paradise for Wine Lovers With its vast collection of rare and vintage wines, Mileștii Mici is a dream destination for connoisseurs and casual wine enthusiasts alike. A Moldovan Jewel Beyond its wines, Mileștii Mici is a testament to Moldova's rich cultural heritage and deep historical ties to viticulture. It’s a must-see symbol of the country’s identity.

In this tour, we will see the largest underground city and churches in the Cappadocia region, you will have an excellent experience with our vip servants and knowledgeable guides.

A unique caving experience in the third largest cave in Portugal, discovering and exploring learning about the underground world.

Join our Colosseum Underground and Arena Exclusive Private Tour and visit the Hypogeum and the Arena levels of Rome's iconic monument with special, extremely limited access. Explore the Colosseum's secret tunnels beneath the arena where the famous Roman Gladiators prepared for their gladiatorial shows. Discover the system of corridors, hidden trap doors, chambers, and cages where they held exotic animals before letting them into the arena. Continue on the 1st and 2nd levels of the Colosseum, and hear about the amazing engineering genius of the Romans who built this extraordinary monument. After the Colosseum, you will continue to the Palatine Hill and Roman Forum with your tour guide. One of the largest archaeological areas in the world, the ruins of Ancient Rome still stand reminding us of a civilization that ruled the world for centuries, and their fame still has not faded.

You will get an unique opportunity to visit the World's largest winery in the world – Milestii Mici Winery, founded in 1969 for small storing, maturing and preserving high quality wines. Underground tunnels with a length of 200 km are dug in layers of limestone rocks at depths between 35 and 80 meters. It represents an unique underground city, well-known all over the world by its huge labyrinths of streets and also biggest wine collection in the world. Another important tourist sight is Manuc Bei mansion, located in Hâncești town. Built at the beginning of the 19th century, in 1816. The project was realized by the famous Italian architect Bernardazzi. The so-called “Moldovan Versailles” palace respects the style of French classicism. We'll visit the hunting Castle, the Natural History and Ethnography Museum and The Manuc Bei Mansion.