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

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

A local prank turned town icon.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

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

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

Journey through a collection of over 35,000 Halloween items from all generations.

Pennsylvanian mass grave and possibly mass murder.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

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

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

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

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

This secluded walking trail is a hidden gem of a Pittsburgh park.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

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

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

America's first serial killer rests in anonymity.

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

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

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

A failed piece of Orientalism has become the proud symbol of a community.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

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