Six miles off the coast of Key West, a former military transport ship is now one of the largest artificial reefs in the world.

This abandoned prison was so notorious that its name has become a metaphor throughout Albania.

After several weeks of radio silence, this abandoned oil tanker washed up on a remote beach in Liberia.

Located in a remote mountain valley in Yamagata Prefecture, these hot springs have attracted bathers for over 450 years.

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

Canyon walls shrouded in ferns.

The ship that got left behind.

Tropical paradise strewn with hundreds of World War II wrecks.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

Two World War II aircraft lie within the jungle around this abandoned runway.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

The Grand Canyon’s original airport, which once welcomed pilots like Amelia Earhart and Charles Lindbergh, lies abandoned.

The remains of Abó, Gran Quivera, and Qurai are monuments to the long, complicated history of the Indigenous people of the Southwest.

Stroll through a wonderland of stupendous moss-covered trees.

The crumbling remains of a gold mine that was operational in the 1930s.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

The cliff and rock formations are made out of Sioux Quartzite.

This set of hot springs also comes with fantastic views.

This huge coastal nature reserve in Wales was a stand-in for the Arabian Peninsula in 'Lawrence of Arabia.'

A nearly century-old amusement park is quietly decaying in a riverside forest in South Carolina.

It's believed human settlements from the Palaeolithic Age were established not far from this canyon.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

Climb into Albania's communist history while enjoying a spectacular ocean view.