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

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 surrealist timepiece by the artist of melting clocks.

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

A unrivaled and rather horrifying collection of wax dermatological models.

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

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

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

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

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

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

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

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

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.

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

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.

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.

One of the largest trees of its kind in California.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

This museum explores the grim reality of life in the earliest British colonies in America.

A quintet of history museums make this Virginia graveyard as much a resting place for funereal history as it is for people.