Hi - My family and I (kids are 13 and 17) will be visiting Philadelphia this weekend (enough time for 2 breakfasts, 2 lunches, and 1 dinner). Never been there before! We are interested in chow-ish recommendations for places that are unique to Philadelphia and that we should not miss! We don't want to break the bank, either. Of course we will want to sample cheesesteaks, but what else do you recommend? We are semi-adventurous eaters so any type of cuisine is possible. Thanks.