Beautiful carved tunnels.

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

Two small chapels housed inside an ancient tree.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

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

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

These quaint French houses dangle precariously over a precipice.

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

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

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

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

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

This stunning natural double arch, the largest in the Alps, went undiscovered until 2005.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

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

An icy lake tucked among jaw-dropping alpine panoramas.

One of the greatest maze designer’s greatest mazes.

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

This Parisian fountain is a little bit fantasy and a little bit nightclub.