A neighborhood church's unusual abstract stained glass was the final project of avant-garde artist Jean Cocteau.

Longest canal tunnel in the world, abandoned in the 1960s.

Exquisite examples prehistoric bas-relief carvings.

A huge Megalithic chamber tomb located behind a cafe.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

1920's reinforced concrete church by architect Auguste Perret changes the face of modern design.

French Time Capsule-19th Century home revealed to the public.

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

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

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

15,000 year old bison sculptures.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

Site of one of World War I's most horrific scenes.

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

For over 300 years this little carving has been the city’s good luck charm.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

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