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

Century-old shop, specializing in Occult products.

A rare view of a preserved Victorian science museum.

This beloved marketplace mascot poops money and grants good luck.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

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

Destructive children, start your engines.

The abandoned coal loading dock is a canvas for unsanctioned art.

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

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.