A (slightly) grownup take on the classic retro arcade.

The first park built over a freeway is a brutalist masterwork.

Peruse rare tomes like poetry bound in pearls or books with branches and berries growing out of their spines.

This demon atop the Notre-Dame de Paris looks utterly bored.

An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

A treasure trove of fine art is hiding inside this small medieval abbey in Gascony.

These unique markers designate the route American forces took during the Liberation of France.

A small world of mechanical magic and metal merry-go-rounds in an outsider art museum.

This "social palace" housing complex created a relatively stable and self-contained worker's society... for a time.

A resort destroyed by a mysterious bombing offers visitors only its remains and the riddle behind it's demise.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.

Resting on a hill overlooking the coast, these medieval ruins look completely deserted save for their restored chapel.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

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

The curious underground history of keeping Paris clean.

Indents in the pavement are all that remain from a grisly death machine in Paris.

This modest marker near Notre Dame identifies the very center of Paris.

France's most famous cemetery, with some of its most curious tombs.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."