An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

An emerald-green grotto just a short trip from Austin.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

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

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

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

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

Medicinal spa created with the discharge from a geothermal energy plant.

Dramatic river bend surrounds a natural red-rocked pedestal.

These boots are made for selfies.