An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Walk in the footsteps of the gods and straddle two tectonic plates.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

305 homemade stone stairs wind their way up the Hamilton escarpment.

A sliver of nostalgia in Seattle's Viretta Park.

The ghostly remains of what was once the world's richest copper mine.

Where the Great Wall of China meets the sea.

Crooked windswept pines give this old forest an enchanted and magical look.

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

World's first "penitentiary," meant to be humane, drove men insane.

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

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Stroll through a wonderland of stupendous moss-covered trees.

A submerged archeological park still holds the wonders of a Roman Sodom.

An emporium for the weird, creepy, rare, and just plain gross.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

There's nothing creepier than a cemetery next to a clown motel.