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

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

A toxic ghost town sitting atop a massive coal fire.

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

A local prank turned town icon.

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

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

A soon-to-be-forgotten roadside spectacle loaded with local lore.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

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

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