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

Over two-thirds of the world's population of giant tortoises live among this coral formation.

Fabulous formations, weird and wonderful wildlife.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

Artifacts showcasing the witchy history of Zambia.

A Cajun-style Christmas on the river also involves sky-high pyres and explosives.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Site of a former hidden treehouse in New Orleans.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Dramatic river bend surrounds a natural red-rocked pedestal.

Rippling sand dunes frozen in the Arizona rock.

Most-visited and most-photographed slot canyon in the American Southwest.

A picture-perfect town, perfect for blowing up.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The clock that sets them all.

A house carved into a rock in the 1940s.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

The remains of a Canadian train crash are now mouldering beneath layers of rust and graffiti.

Home inspired by the crystal rock formation of the Emerald Estates.