Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The celebrated eyesore created by starry-eyed sweethearts.

Notorious artist squat renovated into legal studios.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

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

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

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

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

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

How did a French journalist’s grave become the sexiest statue in the cemetery?

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

Paris' linguistic guide to the international language of, yes, love.

Collection of antique taxidermy and natural specimens, near one of Paris's oldest flea markets.

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

1920's reinforced concrete church by architect Auguste Perret changes the face of modern design.

The encased skull that is widely believed to belong to St. John the Baptist.

Science fiction's grandfather has a fittingly marvelous tomb.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

The tomb of a hard traveling saint is constantly covered in shoes as offerings to heal disabled youth.

Underneath a chalk hill in France lies what Hitler hoped would be the underground launching base for a devastating new weapon.

A house of bones — but nobody is quite sure to whom they belong.

An underground city of ancient quarry tunnels hid thousands of Allied soldiers in WWI.