Cliffside houses provide a spectacular view from their perch above the valley.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

A Spanish town built into the cliffs.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

The Magical World of George Phar Legler.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Remnants of a Victorian garden feature sitting in public woodland.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

A curious cave church carved into the face of a cliff.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

Former island in the Aral Sea used to be a top-secret Russian bio-weapons facility.

Azerbaijani ghost town, decaying after a war left it an armed forces buffer zone.

In this tiny Iranian town playing on the roof isn't just encouraged, it's the only place to go.

Visit this small Mexican church to pray to a mushroom that is supposedly marked with the image of Christ.

A beautiful deserted greenhouse in the middle of a park.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

The geographical center of Chile is a port so depressing that it has driven men to suicide.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

An abandoned movie set in the desert of West Texas.

Infamous and now demolished panopticon prison built by its former inhabitants.