A sanctuary for wolves in a community which once trembled in fear of the murderous "Beast of Gévaudan."

A remote hilltop covered in giant monoliths haunts the Brittany countryside.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

Series of underground houses inhabited continuously for centuries.

A unique zoological park home to over 30 species of wild cats, both big and small.

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

One man's desire to transcend art led to the construction of this outsider chapel.

One of the world's most complex timepieces.

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

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

Tens of thousands of ancient rock carvings hidden in the heart of a French national park.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

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

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

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

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

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

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

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

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

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

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

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

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