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

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

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

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

A Gothic cathedral created from volcanic rocks.

This banal Parisian entranceway is not what it seems.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

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

An icy lake tucked among jaw-dropping alpine panoramas.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

A modern-day Lascaux cave underneath Paris.

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

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

One of the greatest maze designer’s greatest mazes.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

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

19th century pendulum and a clock restored by a rogue group of guerilla artists.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.