As an interesting aside the film maker David Lynch spent a good part of his early 20s in Philadelphia and had this to say about it:
“Yes, Philadelphia is horrible, but in a very interesting way. There were places there that had been allowed to decay, where there was so much fear and crime that just for a moment there was an opening to another world. It was fear, but it was so strong, and so magical, like a magnet, that your imagination was always sparking in Philadelphia. I just have to think of Philadelphia now, and I get ideas, I hear the wind, and I'm off into the darkness somewhere.” — David Lynch