The hidden lair of an alchemist rediscovered in a 2002 flood.

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A museum which takes visitors to the côté obscure of Paris.

An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

A Belle Epoque bordello turned into a themed love hotel.

Inside a former cabaret, seven floors of erotic art.

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

The tomb of history's greatest potato promoter is surrounded by tubers.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

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

A French artist's vague warning hangs over Belleville.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

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

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.

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

BDSM, 1930s Style.

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

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

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