This jail which was in service for over a century is now open for curious visitors.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

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

The graffitied ruins stand hidden within the Pennsylvania woods.

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

Take a step into the workshop where Edison and his employees revolutionized the world.

A recently abandoned psych ward at the end of Sanatorium Road.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

One of the first commercially successful anthracite-powered iron-making operations in North America.

This once luxurious Catskills resort is now a haunting ruin.

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

One of Philadelphia's largest murals resides hidden under this bridge.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Where America's first doomsday cult awaited the end of the world.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

The first American department store, and home to the largest operating musical instrument in the world.

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

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.