I have posted quite a number of interior urbex photos of Eastern State Penitentiary, but there are some terrific subjects from the outside too. I wish that I could tell you that I found this guard tower on purpose, but the fact is that I stumbled upon it by pure luck. I was setting up for a bracket for a long cell block photo and my camera wouldn't fire. For the life of me, I couldn't figure out what was wrong, and I was getting an error message blinking. I took the camera and tripod outside so I could see better what was going on. It turned out that the lens wasn't communicating with the camera. After taking the lens off and putting it back on, all was well. I looked up, and this was the scene that was in front of me. Better lucky than good.