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

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

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

An outlandish shoe shaped house built by an eccentric millionaire.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

Pennsylvanian mass grave and possibly mass murder.

The oldest farmer's market in America is so ancient it was approved by the King of England.

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

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

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

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

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

A beautiful oddities shop crammed with strange and morbid curiosities.

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

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

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

This church in Pittsburgh is home to the largest collection of religious relics in North America.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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

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

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

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

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.