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

A medieval military street hidden beneath a charming French fishing village.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

A modern-day Lascaux cave underneath Paris.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

How did a French journalist’s grave become the sexiest statue in the cemetery?

19th century pendulum and a clock restored by a rogue group of guerilla artists.

A haunting collection of the vanished and disappearing natural world.

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

One of the oldest medical collections in Europe focusing on rare surgical instruments.

This Parisian café is dedicated to great tea and the art of knitting.

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

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

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

Perfume museum and library.

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

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.

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

This Parisian gem is one of the most incredible ethnographic museums in the world.