A museum dedicated to the history of psychiatric treatment featuring a gallery of art made by patients.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.

The fantastic architectural models of a French traveler.

The haunting cadaver tomb of a famous French poet, playwright, and filmmaker.

This mysterious sculpture was thought to symbolize a world ravaged by misery.

The largest medical and anatomical collection in France lies hidden from the public.

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

Two small chapels housed inside an ancient tree.

Natural mummies hidden in the crypt of a medieval French church.

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

A haunting medieval mural of the Danse Macabre graces the walls of this church.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

Jean Tinguely's bizarre monster sculpture is hidden deep in a forest.

Medieval Danse Macabre Fresco in Northern Brittany.

Sculpture of a legendary French dragon.

Memorializing the bravery of one young woman facing the monster of her age.

An unsettling shrine dedicated to the ravenous beast that prowled 18th-century France.

The ruins of an abandoned cemetery are among the last remnants of the old village of La Boulaye before a wealthy landowner had it relocated.

These 17th-century mummies are no longer naturally preserved, but remain on display today.

This remarkable checkered church on a Corsican hilltop is fabled to have been built by angels.

The world's largest boar is a huge steel titan found at a French rest stop.

This French anatomy museum greets guests with a skinless man, mid-shovel.

The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

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