An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

An abandoned stretch of highway, deteriorating next to the operational one.

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

The graffitied ruins stand hidden within the Pennsylvania woods.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

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

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

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

Behold the rickety wooden glory of the world's oldest operating roller coaster.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

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

These disused steel furnaces are now haunting ruins that may one day be a national park.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The ruined remains of a coal mining ghost town are hidden within the woods.

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

This public space is speckled with the eerie remnants of a defunct amusement park.

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

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

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

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.