This interactive sculpture allows visitors to leave a message in case a friend passes by.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A gruesome combat between a hunter and a furious momma bear.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

A tribute shrine where the Space Invasion street art movement started.

One of Jeff Koons’s largest sculptures and his first commemorative work.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

A short distance from the Eiffel Tower is the final resting place of several of the city’s more well-known and interesting characters.

A French artist's vague warning hangs over Belleville.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

The curious underground history of keeping Paris clean.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

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

A mechanized clock where a man fights off a dragon, crab, and rooster.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A museum of magic with a Sadist past.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.