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

This doorless 20th-century elevator doesn't stop or slow down.

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

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

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

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

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

Walk through Czech history in Prague's largest graveyard.

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

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

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

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 tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

This grimly-titled Texas cemetery is all that remains of a Wild West settlement with possibly the worst name.

A collection of beautiful crystals shaped like freshly plucked roses.

A peculiar forest that was handcrafted for government experiments.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

The world's only museum devoted solely to the art and collection of action figures.

A mysterious drive-in nestled in the forest that leaves little to the imagination.

The house where the pulp fiction writer and Conan the Barbarian creator lived.

Park filled with machinery that drove the southern agriculture and oil industries forward.