This recessed garden protects thousands of mountain plants by creating its own microclimates.

This Parisian gem is one of the most incredible ethnographic museums in the world.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

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

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

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

The curious underground history of keeping Paris clean.

The narrowest street in Paris.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The first green space constructed on an elevated viaduct.

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

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

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

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

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.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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