The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

This elaborate towering structure was once famed for its revolutionary height.

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

Pennsylvanian mass grave and possibly mass murder.

The oldest surviving botanic garden in the United States.

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

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

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

The humble field where the first Major League Baseball game was played.

The first of Lancaster's "rural cemeteries."

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

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

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Mysterious rocks that ring musically when struck.

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

World's first "penitentiary," meant to be humane, drove men insane.