The towering cities, with it’s glitz and glamour and surreal touch, hold a deep dark secret. Escape tunnels, underground dungeons…Feel the cold creep into your bones in the deathly silence whilst you explore the underground world with The Wanderers.

Dan Brown’s inspiration : In Rome

Walk the galleries, chambers, and churches of the necropolises beneath the Eternal City and imagine it in the early centuries of Christianity, when Rome was a dangerous place for believers and the caverns were lit by `a myriad of flickering oil lamps. Don’t miss the graffiti—thousands of prayers written by anyone from popes to plumbers.

Through the ages : In Vienna

Beneath the 2,500-year-old city of Vienna is a maze of medieval cellars, preserved baroque crypts, excavated Roman ruins, and underground passageways. While they were built over several centuries, many of these sites are now connected by tunnels that served as air-raid shelters during WWII.

The Great Pyramid: In Egypt

Descend into the heart of the only wonder of the ancient world that survives to this day. Inside the awesome inner sanctum is a sarcophagus, built of granite. About 5,000 years old and 30 times larger in area than the Empire State Building, the Great Pyramid has been the subject of centuries of speculation about its origins, construction, and purpose.

Explore the beyond: In Naples

A gate hidden in an alleyway behind Naples’s Piazza San Gaetano reveals a network of nearly 250 miles of caves and tunnels constructed two millennia ago. Still lying among the ruins are a Greco-Roman theater submerged underneath houses and ancient aqueducts now lined with WWII-era graffiti.

Wieliczka Salt Mine: In Poland

Subterranean passages and gigantic caverns to a depth of 440 feet (134 meters) has lakes, chapels and statues sculpted from salt, the world’s largest mining museum, a sanatorium for those suffering from asthma and allergies, and concert halls with peerless acoustics. Today, it has more than one million people a year who visit the UNESCO-listed site.