Stroll through retro Paris while shopping for old postcards and discarded doll heads.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

A Catholicism-themed restaurant where sacrilege is on the menu.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

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.

Notorious artist squat renovated into legal studios.

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

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.

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.

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

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

This small museum in a 17th-century building honors three iconic Scottish writers.

The most loyal of little dogs, or a Victorian era publicity stunt?

The final resting place of soldiers' loyal canine companions.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

The fountain marks the area where hundreds of accused witches were burned at the stake.

The Bristol Camera Obscura housed in an ancient windmill.

A cluttered and astounding collection of antiquities and curiosities.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.