An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This museum houses an imposing skeleton army comprised of creatures great and small.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

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

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

Jean Tinguely's bizarre monster sculpture is hidden deep in a forest.

Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

Artist and musician Will Menter creates musical sculptures.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

Beautiful carved tunnels.

Home to the "Rat King" of Nantes and other wonders of the natural world.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

A self-built mosaic house and sculpture park.

A passage grave used in neolithic rituals.

This natural crater along the coast of Jersey may take its name from the devil statues who have watched over it.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

His "Lionheart" is entombed separately from the rest of his body.

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.

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

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.