The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

This "floating island" plateau sits 7,671 feet above the forest floor.

A remote forest of stone pillars along the Lena river.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

World's strongest whirlpool.

England's most notorious suicide spot.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Natural time capsule containing an alien ecosystem.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Named for the DeFoe novel inspired by a stranded sailor, this island is known for its rare plants and extreme beauty.

Astonishing rock formations dot the Brimham Moor landscape.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

A white oak with property rights.

Bohol's mysterious brown hills.

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

Landbridge created by the South Korean version of Moses.

Denmark's famous pseudo-hill.

A geological bull's-eye visible from outer space.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The rocks in this arid basin leave trails of movement behind them.

A desert in southeast Asia, complete with a beautiful lake covered in lotus flowers.