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

Locals call this magical moss-covered walkway the "Emerald Path."

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

Pennsylvania's own Roswell-style UFO mystery.

Pennsylvanian mass grave and possibly mass murder.

An outlandish shoe shaped house built by an eccentric millionaire.

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

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

It would take 35 firetrucks to fill this enormous glacial pothole.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

The Home and murder site of the witch of Rehmeyers Hollow.

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

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

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

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