The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

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

This artificial cave looks like something out of a fairytale.

Looming communist pillar with a Czech twist.

This automated sculpture of two men peeing will spell out text messages with their micturition.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

Walk through Czech history in Prague's largest graveyard.

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

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

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

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

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

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.

Macabre astrological automaton clock dating to the late 1400s.

An eerie, derelict amusement park in Berlin.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

A century-old shot ball factory tower is open to the public once a year.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.