The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

Yo, Adrian!

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

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

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

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

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

World's first "penitentiary," meant to be humane, drove men insane.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

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

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.