Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

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

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

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

The curious underground history of keeping Paris clean.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

The first green space constructed on an elevated viaduct.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

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

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

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

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

A museum of magic with a Sadist past.

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

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

A museum of carnival attractions where you are invited to ride the rides.

A haunting collection of the vanished and disappearing natural world.

Abandoned railway line circling the city of Paris.

Notorious artist squat renovated into legal studios.

This massive library holds what was once the largest book collection in the world.