A former milk-delivery driver and his wife turn their home into a glimmering mosaic.

Large Hadron Collider and the Birthplace of World Wide Web.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

One woman's decades-long obsession with the "La Fée Verte."

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

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.

An enchanting work of outsider art, full of whimsical sculptures and carvings.

This professional clown's home is an outsider art wonderland.

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

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

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

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

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

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

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

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

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

100-windowed castle turned art gallery, built by one dedicated mason.

This tiny hotel perched atop a 50-foot tower really puts things into perspective.

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

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

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