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

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

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

The oldest stone house in Paris was built by its most famous alchemist.

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

Abandoned railway line circling the city of Paris.

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

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

Haunted house kitsch meets Japanese folklore at this theme bar where patrons can “die” and have their own mock funeral.

Fine dining in the bizarre world of Lewis Carroll.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

This museum is dedicated to the cultural history of tobacco and salt, once monopolized in Japan.

This shrine dedicated to a legendary swordsman has become a pilgrimage site for the ill and infirmed.

An enormous pair of straw sandals woven in the traditional way—to keep demons at bay.

Mythical beasts symbolizing the city of Tokyo guard a historic bridge.

This sprawling scenic burial ground is the final resting place of Japan's last shogun.

Go through the looking glass in Tokyo's Wonderland-themed shop.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

Every color in the rainbow awaits.

A 20-meter (65-foot) robot towers over Tokyo Bay.

If Hello Kitty were Mickey Mouse, this would be Disneyland.

A taste of the macabre Tokyo's ritzy shopping district.

A magical place that lets you play in and explore the world of Studio Ghibli.

Amsterdam's Red Light District leaves little to the imagination.