Narrow gorges and deep pools created by long-ago glaciers.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

A toxic ghost town sitting atop a massive coal fire.

An underground blaze turned this village into a ghost town.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

A monument to an Irish secret society thought to be responsible for a string of violent attacks in Pennsylvania coal mines.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

Whimsical artist house in the New Jersey woods.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

Local lore claims this park is named after a young woman who jumped off a cliff.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

One of the first commercially successful anthracite-powered iron-making operations in North America.

This jail which was in service for over a century is now open for curious visitors.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

The lasting remains of the region's once booming cement industry.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

This park contains a number of standing stones meant to heal and inspire.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The final resting place of the Hollywood star who came to a tragic end.

A downtown park built on top of unclaimed graves.