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

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

The graffitied ruins stand hidden within the Pennsylvania woods.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

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

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

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

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

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.

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

A sycamore tree grown from seeds that traveled to the moon.

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

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

Visitors to Salt Springs State Park are encouraged to literally put their two cents in Penny Rock.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

This park contains a number of standing stones meant to heal and inspire.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

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

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

Metal monsters made from repurposed materials lurk alongside this Pennsylvania road.

A toxic ghost town sitting atop a massive coal fire.

An underground blaze turned this village into a ghost town.

A eight-foot-tall statue resides in the heart of Pennsylvania anthracite coal country.