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

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Museum in a swimming pool where the water still flows.

Avant garde house of Pierre Cardin on the Cote d’Azur.

A unique underground structure dating back to the 1st century BC.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

The Sun King's military models, saved from the Louvre.

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

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

These quaint French houses dangle precariously over a precipice.

Historic medieval fortified city in southwest France.

The encased skull that is widely believed to belong to St. John the Baptist.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

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

Two small chapels housed inside an ancient tree.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This massive blockhead sculpture hides an entire library.

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

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

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The famous winding walk at Chartres is surrounded in mystery and myth.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.