Perhaps the most beautiful of preserved saints, with a little help from Paris.

The world's most famous cheese caves.

These medieval ruins have survived since the 12th century, even providing shelter from the Nazis.

Perfume museum and library.

This otherworldly French waterfall looks like its waters have turned to stone.

Figures of unknown origin carved into the surfaces of underground caves.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

Underneath a chalk hill in France lies what Hitler hoped would be the underground launching base for a devastating new weapon.

Located in the house where Gustave Flaubert was born, this odd museum has more to do with medical grotesquery than the Western novel.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

One of the world's most complex timepieces.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

A French library that makes sure its love of books is writ large... giant in fact.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

A unique underground structure dating back to the 1st century BC.

This ancient theater was once the home of fierce gladiatorial battles.

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

Statue of a decomposing prince that once held his heart in its hand.

These crumbling Nazi artillery bunkers are now fair game for massive graffiti projects.

If they push on just the right spot, even the weakest person can move this titanic boulder.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.