This innocuous-seeming building is actually the remnant of a major wartime brothel.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

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

This banal Parisian entranceway is not what it seems.

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

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

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

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.

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

A unrivaled and rather horrifying collection of wax dermatological models.

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

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.

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

A museum of magic with a Sadist past.

A surrealist timepiece by the artist of melting clocks.

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

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

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.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

This Parisian café sticks almost exclusively to an ethos of reuse.

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.