A Belle Epoque bordello turned into a themed love hotel.

Admire endangered plants in a verdant garden that looks straight out of a Monet painting.

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

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

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

A massive, secret marina for the Nazis' most formidable weapon in the Atlantic.

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

France's high-tech, future-themed amusement park.

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

Perfume museum and library.

The world's most famous cheese caves.

This otherworldly French waterfall looks like its waters have turned to stone.

Located in the house where Gustave Flaubert was born, this odd museum has more to do with medical grotesquery than the Western novel.

A French library that makes sure its love of books is writ large... giant in fact.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

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

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Historic medieval fortified city in southwest France.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

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.

Ancient paintings known as the "Sistine Chapel of Cave Art."