A local prank turned town icon.

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

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

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

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

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

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

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.

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

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

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

The oldest farmer's market in America is so ancient it was approved by the King of England.

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

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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.

In which a local geological marvel becomes a quaint roadside attraction.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

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

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.