An American flag was erected for every day that passed during the Iranian Hostage Crisis.

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

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

Each step is a mere four inches tall, said to be measured by the stride of a woman wearing a hobble skirt.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The graffitied ruins stand hidden within the Pennsylvania woods.

A giant ball made from pieces of an old Jeep.

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

This giant disembodied horse head seems to balance impossibly on its nose.

Where the oil industry began.

Pittsburgh's literal underground railroad.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

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

An Irish Memorial commemorating those who perished due to potato blight.

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

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

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

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

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

America's first serial killer rests in anonymity.

A park full of outsider art, created by college students studying outsider art.

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