Design illusions in forgotten Camden, NJ

Camden is a town directly facing Philadelphia, PA, across the Delaware River.  Once, Camden was a thriving industrial city,  but the city's crime rate became one of the highest in the United States.  In the '90s, I often walked along the spooky blocks of forgotten Camden, capturing photos of old houses with unique architectural designs.  I was particularly fascinated by the patterns created by the tiles and the joints.  The joints in the photos seen here can appear to be dented, as well as floating -- an the illusion for the eyes.