According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

Experience a charming 1930's version of "infotainment."

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Hidden beneath the streets of London is a secret subway that only carried mail.

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

Miniature art that tells an enormous story.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A historic arboretum and non-conformist, non-denominational park cemetery.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A modern English garden of eccentric beasts, follies, and oddities.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

Fine dining in the bizarre world of Lewis Carroll.

Eighteen miniature death-scene dioramas.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Famously misunderstood wonder of the ancient world