Clusters of huge boulders in the Australian Outback.

The pits used to load the nuclear bombs onto the aircraft that dropped them over Hiroshima and Nagasaki at the end of World War II.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

This abandoned palace and the stupas around it conceal beautiful Buddhist frescoes, statues, and silk paintings.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

The remains of what was, not so long ago, the world's largest city.

Japanese island famous for poison gas and fluffy bunnies.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

Hundreds of hopeful gold miners came here to get rich, but only two years later the small town was deserted.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

Fabulous formations, weird and wonderful wildlife.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

A small Richmond island dotted with the remnants of hundreds of years of history.

The ruins on a deserted tropical island in the Philippines bear the scars of WWII.

An incredible garden taking over the interior of a massive sinkhole.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

On a dusty county road sit the ruins of a ghost town's abandoned church.

Walk through Czech history in Prague's largest graveyard.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

An enormous, inside-out glass globe built in 1935.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.