The oldest garden in Prague, once part of an medieval orchard.

A saintly relic hidden in a Prague church basement.

This artificial cave looks like something out of a fairytale.

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

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

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

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

The first museum in the world devoted to sexual gadgetry.

Walk through Czech history in Prague's largest graveyard.

The hidden lair of an alchemist rediscovered in a 2002 flood.

A Jenga-style cylindrical tower of books that appears to go on forever.

Countless grotesque faces stare out from this eerie Prague art wall.

Macabre astrological automaton clock dating to the late 1400s.

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.

This monumental work of art symbolizes the coming together of a previously divided city.

A surprisingly detailed model of one of the most powerful telescopes in the world.

A Saxony castle houses one of the largest and most outstanding mineral collections in the world.

A typical crusty old museum this isn't.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

A slice of central Asia in the middle of Berlin.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.