A medieval church built into an ancient cave.

The vibrant buildings in the “capital of the comic strip” celebrate the art form that made it famous.

Buddha and Jesus tower over this French mountainside headquarters of the Aumism religious cult.

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

A quarry cum sculpture park where the works of art are chiseled into the very walls.

The beautiful bas-relief lines a sliver of a 19th-century walking path between two charming French villages.

A resort destroyed by a mysterious bombing offers visitors only its remains and the riddle behind it's demise.

Rows of multicolored bathing huts paint the sand dunes with pops of color.

One of the last realized projects of an influential, self-taught, French Modernist architect Jacques Couëlle.

A fortified palace in the shape of a ship on the Thiou river.

The precise origins of this pink sandstone temple are unknown.

The castle where the Marquis de Sade lived out his darkest fantasies.

The ruins stand as a somber reminder of France’s worst civil catastrophe of the 20th century.

France's highest manned weather station is the only one still inhabited by meteorologists.

These rustic holiday homes are made from discarded fishing boat hulls.

A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

This mosque was based on Sub-Saharan Islamic architecture and created for the Senegalese Tirailleurs.

The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

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

This church sits upon a peaceful hill and a long, turbulent history.

Nearly every wall in this French villa has been "tattooed" by artist Jean Cocteau and other famous painters.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

This French chateau is home to the world’s largest private collection of fighter jets.

Small French town or alien garage?