Fighting the British and making game shows for over 150 years.

A massive, secret marina for the Nazis' most formidable weapon in the Atlantic.

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

100-windowed castle turned art gallery, built by one dedicated mason.

The sunken structure looks like the victim of a catastrophic flood.

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

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

This 14th century wine cellar is home to the oldest barrel-stored wine in the world.

Series of underground houses inhabited continuously for centuries.

A village of art and exotic creations.

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

To the famous surrealist artist, liberty required two torches held high.

The world's most famous cheese caves.

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

An architectural oddity of six stories, accessed by graceful ramps.

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

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

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

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

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

A medieval church with largest and oldest collection of Renaissance frescoes in France.

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

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.