Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Lady Liberty's original designer installed a little clone in this French fountain.

This facility has manufactured stunning tapestries for France's royalty ever since the 17th century.

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

The storefront of a ramshackle Parisian puppet theater.

This 1,400-year-old abbey was once a powerhouse for music and intellectualism known across Normandy.

Site of one of World War I's most horrific scenes.

The world's most famous cheese caves.

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

French commune at the heart of conspiracies.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

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

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

An architectural oddity of six stories, accessed by graceful ramps.

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

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

The deserted pirate-themed restaurant still entices explorers.

Since ancient times these picturesque springs have been providing bathers with healing waters.

An odd museum dedicated to French fakes.

This innocuous-seeming building is actually the remnant of a major wartime brothel.

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

Monsters and miniatures are held in equal esteem at this wondrous museum.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.