A museum of magic with a Sadist past.

A meditative space out of a fantasy story.

A mysterious castle built as a monument to lost love.

A reproduction of earth's many biomes.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

The underground sanctuary of a mysterious ancient cult.

This woodland architectural installation acts as a camera obscura for the heavens.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

A beautiful oddities shop crammed with strange and morbid curiosities.

Rustic natural hot springs in the deciduous rain forest.

A wunderkammer of mysterious objects and stories.

The longest navigable underground river in the United States is home to countless blind and albino animals.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

The curios of pharmacist and collector Henry Wellcome.

Rare recess caves fill this unbelievably beautiful Ohio park.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

A house filled to the brim with oddities and curiosities.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A castle that was built stone by stone by an eccentric journalist.

This Parisian café sticks almost exclusively to an ethos of reuse.

A church of bones, decorated with 40,000 human skeletons.