This crescent-shaped sliver of sand is a magical haven for a herd of feral horses.

These hellish-looking cliffs in the Canadian Arctic have been burning for centuries.

A boiling wellspring flowing with natural gas burns in a continual blaze.

A toxic ghost town sitting atop a massive coal fire.

A natural gas leak provides a flickering flame beneath a waterfall.

A shrine of fire worship built on top of a natural flame.

A coal fire has been burning underground here since 1896.

6000-year-old coal fire moves one meter per year.

Mysterious hillside with a continuously burning natural fire.

A fiery crater has been burning in the Karakum Desert since 1971.

This monastery built into a cliff hides a perfectly preserved hermit in a glass coffin.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

A castle perched precariously over the Crimean Sea.

This precariously perched fortress was once ruled by a crow-worshipping baron.

The hermits of Karoulia protect their asocial lifestyles by living on the vertical face of a treacherous precipice.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

A historic observatory precariously perched at the "Top of Europe."

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

This abandoned, turn-of-the-century astronomy hub is now the subject of more photographs than it ever took.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.