Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

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

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Pennsylvanian mass grave and possibly mass murder.

The Home and murder site of the witch of Rehmeyers Hollow.

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

Yo, Adrian!

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

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

This Old Testament garden features 100 plants from biblical times.

The oldest surviving botanic garden in the United States.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

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

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

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

This might just be the TARDIS of bookstores.

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

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.