This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

Historic medieval fortified city in southwest France.

An aluminum skeleton brings Chinese mythology to the French shore.

An ancient monastery, a locked room, and a mysterious book heist.

A Gothic cathedral created from volcanic rocks.

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

This massive blockhead sculpture hides an entire library.

The largest underground church in Europe.

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

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

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

A beautiful and classically designed villa, with an hourly infestation of monsters.

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

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

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

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

The history of radiation is on safe display at the foot of a radiation science laboratory.

One of the greatest maze designer’s greatest mazes.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.