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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

The world's tallest bridge is also possibly the most elegant.

The site of the first medieval crusade that pitted Christians against Christians.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

A unique zoological park home to over 30 species of wild cats, both big and small.

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

A suspended footbridge allows for traversing this gorge carved through the French Alps.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

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

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

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

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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

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

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.