Legend has it this 11th-century castle was paid a visit from the devil.

French commune at the heart of conspiracies.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

An abandoned beach resort in Normandy reclaimed by artists.

The world's largest reflecting pool is just two centimeters deep.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

Beautiful carved tunnels.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

BDSM, 1930s Style.

This professional clown's home is an outsider art wonderland.

This banal Parisian entranceway is not what it seems.

A Gothic cathedral created from volcanic rocks.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

An icy lake tucked among jaw-dropping alpine panoramas.

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.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

Statue of death tucked in the University of Medicine courtyard.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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

A museum of magic with a Sadist past.

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

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

Silent memorial, using bone conduction to take people back to the Dresden Bombing of 1945.