A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

This antique prison is a tourist attraction with a sordid past.

A hospital where antique dolls are given new life.

A collection of objects supposedly singed by the hands of souls in purgatory.

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

This mountain's identity is stuck somewhere between a nightmare and a scenic tourist attraction.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

A ruined hotel with an unlucky history and an eerie present.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

A Belle Epoque bordello turned into a themed love hotel.

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

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.

A font of vintage porn on the silver screen.

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

France's most famous cemetery, with some of its most curious tombs.

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

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

Statue of death tucked in the University of Medicine courtyard.

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

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

Ghosts of France's colonial past.

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

The historic Masonic Lodge in which the first-ever female Mason was initiated.