Ancient paintings known as the "Sistine Chapel of Cave Art."

Limestone grottoes turns everyday objects into stone.

This church sits upon a peaceful hill and a long, turbulent history.

This former limestone quarry is now a subterranean wonderland of grand stonework.

Fur-lined metal pod dangling in the French countryside.

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.

Despite centuries of architectural innovation, this French castle is being built like it's the 13th century.

This anatomical sculpture raises awareness about violence against women and promotes gender equality.

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

France's high-tech, future-themed amusement park.

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

Before this bridge was built people had to wait for the ferryman, an annoyance that, the story has it, gave the town its name.

A 13th century fortified house built to defend the Duchy of Burgundy.

Artist and musician Will Menter creates musical sculptures.

A garden of massive sculptures sits in Jean Lindard's backyard.

Exquisite examples prehistoric bas-relief carvings.

The not-quite-incorruptible St. Bernadette is perhaps the most beautiful of preserved saints—with a little help from Paris.

Legend has it this 11th-century castle was paid a visit from the devil.

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

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

French Time Capsule-19th Century home revealed to the public.

A Gothic cathedral created from volcanic rocks.

A five-square-mile slice of Spain on the Mediterranean coast of North Africa.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.