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

Made of bronze and wearing a blue gown, this lady sat in the same location in the Yantic Cemetery for more than 119 years.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A rare view of a preserved Victorian science museum.

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

Meet manatees face-to-face at this zoo for native species.

A creative deviation in this post office's design was once a source of controversy.

Sand dunes from a glacial lake are preserved in this woodland park.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

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

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

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

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

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

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

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

One of the oldest of its kind.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

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

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

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

A beautiful oddities shop crammed with strange and morbid curiosities.