Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

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

A short distance from the Eiffel Tower is the final resting place of several of the city’s more well-known and interesting characters.

Museum in a swimming pool where the water still flows.

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

Ghosts of France's colonial past.

A beautiful and classically designed villa, with an hourly infestation of monsters.

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

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

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

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

The famous winding walk at Chartres is surrounded in mystery and myth.

Monsters and miniatures are held in equal esteem at this wondrous museum.

A medieval military street hidden beneath a charming French fishing village.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Indents in the pavement are all that remain from a grisly death machine in Paris.

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

Danish whalers once brought back whale bones to use as building materials in places where wood was scarce.

A public display of random paleontology.

Iron Age "bog person" preserved for over 2,300 years.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.