First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

Inside a former cabaret, seven floors of erotic art.

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

BDSM, 1930s Style.

A unrivaled and rather horrifying collection of wax dermatological models.

A haunting collection of the vanished and disappearing natural world.

An unusual number plate signifies the building's saucy past.

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

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.

Weird wax anatomical models reside here, as do other anatomical specimens.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A surrealist timepiece by the artist of melting clocks.

A font of vintage porn on the silver screen.

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

Notorious artist squat renovated into legal studios.

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

An enormous cat made of recycled wood scraps.

Australia's largest medical museum featuring a 19th-century pharmacy.

A rare festival blending religion, blacksmiths, vagina dentata, sex workers, and the straight-up facts of life.

The world's largest drain sits below the city of Kasukabe, Japan.