Collection of antique taxidermy and natural specimens, near one of Paris's oldest flea markets.

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

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

One of Jeff Koons’s largest sculptures and his first commemorative work.

A unrivaled and rather horrifying collection of wax dermatological models.

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

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

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

A haunting collection of the vanished and disappearing natural world.

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

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

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

This recessed garden protects thousands of mountain plants by creating its own microclimates.

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

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

A fearsome dragon clings to a corner of Munich's city hall.