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

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

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

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

A unrivaled and rather horrifying collection of wax dermatological models.

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

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

The history of radiation is on safe display at the foot of a radiation science laboratory.

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Statue of death tucked in the University of Medicine courtyard.

A subterranean shelter remains intact under a busy Paris railway station.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

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

Indents in the pavement are all that remain from a grisly death machine in Paris.

A surrealist timepiece by the artist of melting clocks.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

France's national museum of scientific and industrial instruments.

This museum houses an imposing skeleton army comprised of creatures great and small.

A museum of magic with a Sadist past.