While we were in Philadelphia, we went to the Eastern State Penitentiary--the oldest federal prison in the USA. The architecture was interesting from the outside and from the inside, but the whole thing is in a state of "crumbledown." This helps create the uneasy feeling you have when you walk around with your audio guide listening to the stories of people who were there. As I was walking and looking, I began to notice how interesting peeling paint and rust can be. Here are some close-ups I took that looked like modern art to me.
One cell was very nicely furnished--the one Al Capone stayed in.