Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

A self-built mosaic house and sculpture park.

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

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

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

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

One woman's decades-long obsession with the "La Fée Verte."

This is what trains will look like after the zombie apocalypse.

BDSM, 1930s Style.

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

Beautiful carved tunnels.

An aluminum skeleton brings Chinese mythology to the French shore.

Avant garde house of Pierre Cardin on the Cote d’Azur.

Ghosts of France's colonial past.

The fantastic architectural models of a French traveler.

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

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

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

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

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

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