Touching displays of wishes for peace from the Cold War era.

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

The ghostly remains of an accidental sea.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

A former utopian healing center created by a huckster and built by derelicts.

This secluded date farm can be reached only by following a bumpy, single-lane desert road.

A mysterious and endangered parasitic herb from the California desert.

The abandoned airport is a strangely intact remnant of Cambodia's brutal Khmer Rouge regime.

Arguing within this idyllic, circular volcanic lake is forbidden.

This impressive clifftop temple was once at the center of an international custody dispute.

Abandoned soda factory on a Cambodian roadside in a state of beautiful decay.

More than 100 Hindu temples are slowly being swallowed by the forest.

The giant Siberian crater known locally as the "doorway to the underworld" is expanding every year.

The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

This remote research station sits amid the second-largest ice sheet on the planet.

A long-disputed island that Denmark and Canada claim by periodically alternating flags and bottles of liquor.

The third-largest island in Canada is one of the remotest places on Earth.

The world's northernmost flowers cling tenuously to life on desolate Kaffeklubben Island.

The wing of this deserted Boeing 737 almost touches the Dunkin' Donuts next door.

A haunting theme park is slowly being swallowed by the jungle.

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

Think you have a tough job? Try carrying 200 kilos through a cloud of sulfur down the side of a volcano.