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

A toxic ghost town sitting atop a massive coal fire.

The land is home to swimming ponies and a legendary 18th-century treasure.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

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

Memorializing an American tragedy of massive proportions.

A diorama of the Civil War, fought by cats.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

This dramatic rail curve was once the target of a failed Nazi attack.

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

Pennsylvania's own Roswell-style UFO mystery.

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

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