Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

This mouldering abandoned mental hospital was once a center for progressive healing.

This abandoned ironworks was once the most important military supplier in America.

This abandoned factory on the Hudson River once churned out a million bricks a week.

The remains of what was once the world's steepest passenger funicular.

An abandoned tuberculosis hospital moulders on into an uncertain future.

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.

Step inside Lucy, the world's largest "elephant."

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

A field of nothing but boulders which resembles a giant's gravel driveway.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

The graffitied ruins stand hidden within the Pennsylvania woods.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

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

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

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

Pennsylvania’s creepiest roadside attraction is a haunting example of roadside kitsch.

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.

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

A local prank turned town icon.