The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

Even France's favorite aquatic son Jacques Cousteau, couldn't get to the bottom of it.

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

Walk through living pictures and music in the Cathedral of Images.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

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

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

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

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

Former hunting lodge of a duke who was an avid collector of impressionist works.

This bridge was constructed from the rubble of the infamous Bastille.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

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

The world's tallest bridge is also possibly the most elegant.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Historic medieval fortified city in southwest France.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

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

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

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