Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

Underneath the city that invented pilsners are a series of historic tunnels that have been storing beer for centuries.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

A mocking tribute to the past and modern leadership of Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This artificial cave looks like something out of a fairytale.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

Beatlemania is still going strong... at least in Kazakhstan.

This Soviet statue is based on a piece of propaganda that's been elevated to national myth.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

A brilliant turquoise lake in the mountains.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

Granny Smiths and Fujis can both be traced back to Kazakhstan, where apples still grow wild.

This no man's land slicing through the island is strewn with abandoned relics of another time.