The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

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

A gruesome combat between a hunter and a furious momma bear.

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

The historic Masonic Lodge in which the first-ever female Mason was initiated.

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

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

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

This lesser-known Frank Gehry building houses a treasure trove of cinema history.

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.

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

A surrealist timepiece by the artist of melting clocks.

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

The narrowest street in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This 400-year-old tree is actually an immigrant from North America.

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

The site where two doves fell in love.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The location of this small park was once the site of an infamous public morgue.

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

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.