A beautiful and abandoned New York subway station from 1904, complete with chandelier.

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

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.

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.

This Parisian café sticks almost exclusively to an ethos of reuse.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A surrealist timepiece by the artist of melting clocks.

A museum of magic with a Sadist past.

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

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A haunting collection of the vanished and disappearing natural world.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

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

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

An homage to everyone's favorite prehistoric cartoon family.