After years of being casually peed on by humans, this tree is peeing back.

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

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

Catacombs turned marketplace.

A tongue-in-cheek arcade where the games are based on everyday life.

This little-known relic crypt holds stolen parts of a Roman Empress.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

This massive library holds what was once the largest book collection in the world.

Notorious artist squat renovated into legal studios.

A surrealist timepiece by the artist of melting clocks.