This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

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

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

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

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

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

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Sleep in a climate-controlled plastic bubble for the night.

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

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

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

An aluminum skeleton brings Chinese mythology to the French shore.

An icy lake tucked among jaw-dropping alpine panoramas.

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

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.

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

Two small chapels housed inside an ancient tree.

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

A Gothic cathedral created from volcanic rocks.

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

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

This massive blockhead sculpture hides an entire library.