In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A Spanish-style estate that has traded black ties for rock concerts.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

Saintly bones pressed into a wax effigy of a Catholic superstar.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

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

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

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

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A unrivaled and rather horrifying collection of wax dermatological models.

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

The largest medical and anatomical collection in France lies hidden from the public.

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

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

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

A surrealist timepiece by the artist of melting clocks.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

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

The oldest stone house in Paris was built by its most famous alchemist.

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