One more thing about Philly....the food. Oh God...the food is incredible.
For anyone that has some time to kill in PHL, you have got to check out this restaurant in Prospect Park PA called 'Trieste Italian Restaurant'. Its only a few miles from the airport, and it is some of the best Italian food you will find ANYWHERE. Its a little family owned hole-in-the-wall place that's been around since the 60's (by the same family I think). I grew up just a few miles from this place, and my family has been eating here for over 30 years...almost weekly.
My all time favorite dish there is the Lasagna...I know seems too obvious, but I have never had a Lasagna anywhere (including Italy!) that can hold a candle to theirs.
This place is amazing.
http://www.triesterestaurant.com/