The eclectic observatory castle of a 19th-century astronomer and explorer.

This castle-fortress is a living example of the transition from medieval defenses to modern fortifications.

The ruins of an abandoned cemetery are among the last remnants of the old village of La Boulaye before a wealthy landowner had it relocated.

Experience architect Le Corbusier's modernist design for living in the home he designed for himself.

This building’s ghostly exterior reflects its former lives as a prison, school, and funeral home.

Lady Liberty's original designer installed a little clone in this French fountain.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

A Christian retreat founded to welcome refugees fleeing from the Nazis during World War II.

This Corsican Neolithic site is full of pre-Roman megalithic structures that may or may not be penises.

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

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

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

This 1,400-year-old abbey was once a powerhouse for music and intellectualism known across Normandy.

A crumbling island fortress that seems to be covered in a field of stone crosses but is simply incomplete.

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

A huge Megalithic chamber tomb located behind a cafe.

The narrowest street in Paris.

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

This French anatomy museum greets guests with a skinless man, mid-shovel.

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.

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

This French "sea of rocks" is packed with stunning rock formations and its own medieval castle.