This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Got apples?

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

Notorious artist squat renovated into legal studios.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

The romantic garden was the epicenter of the Hungarian art scene in the 1880s.

This artificial cave looks like something out of a fairytale.

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

A Hungarian optometrist's charming collection of Asian art and curiosities.

A world-class theater sits hidden in this remote town in West Iceland.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

A crucified and bearded female saint.

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

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

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."

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.

Stockholm's last remaining paternoster elevator.

Every Tuesday, students let off steam by screaming into the night air.

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.