This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

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

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

A modern-day Lascaux cave underneath Paris.

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

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

Statue of death tucked in the University of Medicine courtyard.

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

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

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

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

A haunting collection of the vanished and disappearing natural world.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

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

Notorious artist squat renovated into legal studios.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Fantastic views and thousands of love locks.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

After years of being casually peed on by humans, this tree is peeing back.

A tiled, multi-level garden of survival in Lyon.

Monsters and miniatures are held in equal esteem at this wondrous museum.