One of the oldest of its kind.

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

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

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

America's first serial killer rests in anonymity.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

Pennsylvanian mass grave and possibly mass murder.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

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

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

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

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

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

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.

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

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

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

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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.