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.

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

Looming communist pillar with a Czech twist.

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

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

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

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

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.

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

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

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

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

Macabre astrological automaton clock dating to the late 1400s.

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

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

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

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A surreal statue honoring Prague's favorite literary son.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.