North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

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

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

A museum of anything and everything Stooge.

A park full of outsider art, created by college students studying outsider art.

This might just be the TARDIS of bookstores.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

Pennsylvanian mass grave and possibly mass murder.

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

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