In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

The first green space constructed on an elevated viaduct.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

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

This Parisian café sticks almost exclusively to an ethos of reuse.

Hundreds of hidden passageways weave through the old quarters of Lyon.

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

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

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

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

Science fiction's grandfather has a fittingly marvelous tomb.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

One of the greatest maze designer’s greatest mazes.

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

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

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

This museum houses an imposing skeleton army comprised of creatures great and small.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

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

19th century pendulum and a clock restored by a rogue group of guerilla artists.

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

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.