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

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A mocking tribute to the past and modern leadership of Prague.

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

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

A church of bones, decorated with 40,000 human skeletons.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

This former quarry is now a picturesque gorge that hides a sunken lake.

This spooky statue sits outside a famous Prague theater.

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

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

The Devil’s own choice when he needs a drink in Brussels.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

Abandoned railway line circling the city of Paris.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

A surreal statue honoring Prague's favorite literary son.

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

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

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