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

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Abandoned railway line circling the city of Paris.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The sign at the garden gate reads: "These Plants Can Kill."

Hot springs monkey spa in the middle of Hell's Valley.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The legendary building that needed ghostly approval before being built.

These fantastically named natural pools look like something out of a Scottish myth.

A 140-year-old castle with underground caves hidden in San Francisco.

A snapshot of the city's fascinating voodoo culture.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A kaleidoscopic warehouse-maze of handmade neon signs.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

On Japan's Tashirojima Island, cats are king.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.