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

An antique curios dealer and hybrid taxidermist.

A charming flea market shop dedicated to retrofuturistic apparati.

The apartment where Pippi Longstocking came to life.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

Supposed home of the camel ridden by Napoleon during his Egyptian campaign.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Folklore and history carved into Brittany's coast.

A massive, secret marina for the Nazis' most formidable weapon in the Atlantic.

Fighting the British and making game shows for over 150 years.

A quarry cum sculpture park where the works of art are chiseled into the very walls.

This demon atop the Notre-Dame de Paris looks utterly bored.

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.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

The personal library of the founder of modern neurology is open to visitors.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

The narrowest street in Paris.

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

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

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

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.

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