Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

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

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

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

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

The graffitied ruins stand hidden within the Pennsylvania woods.

This Old Testament garden features 100 plants from biblical times.

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

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

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

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

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

The abandoned coal loading dock is a canvas for unsanctioned art.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Series of storm drains connected to a dark urban legend.

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.