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

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

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

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

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.

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

Walk through Czech history in Prague's largest graveyard.

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

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

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

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.

A jagged silhouette of shamanistic stone heaps rises from the shore of this dazzling mile-high lake.

This spiritual landmark for practicers of Shamanism is drenched in milk and vodka and covered in blue scarves.

The grassy landscape is home to the world's last truly wild horses.

Enormous statue of the Emperor of the Mongols.

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

A graveyard of old and rare planes that once were the glory of Persian aviation.

One of the world's largest shopping malls covers an area of 15 million square feet—and it's still set to grow.

One of the holiest Shi'i shrines in Iran honors the life and death of a learned noblewoman who became a saint.

Two Chinese dragons guard the caves of this medieval temple in Iran.