Home to the most complete dodo remains known - one head, and one foot.

Beijing's expansive subterranean hiding spot now crumbles away as a tourist destination.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

A giant 400-acre preserve in North Florida for displaced wolves.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

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

Abandoned city hidden from the world by tropical forest and isolation on the coast of Kenya.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

A magically clear, blue river that seems to spring from nowhere.

An abandoned stretch of highway, deteriorating next to the operational one.

The resting place for anonymous victims of the Danube's dark waters.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

A house filled to the brim with oddities and curiosities.

An underwater restaurant, surrounded by a coral reef.

A trash dump made beautiful by nature's power.

A fiery-red region of scooped out land still largely untouched by civilization, tourists or otherwise.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

Brightly painted boulders scattered throughout the Sinai Desert.

Steaming blood-red hot spring from hell.