The self-mummified monks of Japan.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

The legendary birthplace of the Japanese maneki-neko is dotted with hundreds of lucky beckoning cats.

The final resting place of the poets Shelley and Keats.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The history of radiation is on safe display at the foot of a radiation science laboratory.

San Diego's most historic and haunted home.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The freshest fish here are the ones you catch yourself.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Shrine to Japanese water-goblins, complete with their preserved body parts.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Museum dedicated to awful artwork.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

This 16th-century monastery has been turned into a surrealist architecture compound.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Occult books, tarot, oddities.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A unique waterfall that some believe attracts the fairfolk.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

A wunderkammer of mysterious objects and stories.