A bronze statue of Mister Rogers in the neighborhood where he grew up.

Narrow gorges and deep pools created by long-ago glaciers.

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

For decades, it has disappeared and reappeared as water levels rise and fall.

Steepest flood safety railway in the entire world.

A glittering Thai Buddhist temple in suburban Pennsylvania.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

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

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

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

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

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

The abandoned coal loading dock is a canvas for unsanctioned art.

This Old Testament garden features 100 plants from biblical times.

The graffitied ruins stand hidden within the Pennsylvania woods.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

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

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

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

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

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

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

One of only two sites in the United States containing the remains of Buddha.