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

Paris' fabled purveyor of exotic taxidermy and natural history curios.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

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

Statue of death tucked in the University of Medicine courtyard.

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

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

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

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

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

A mechanized clock where a man fights off a dragon, crab, and rooster.

Notorious artist squat renovated into legal studios.