My girlfriend and I will be spending Labor Day weekend in Philly. We're staying at a b&b in the Rittenhouse area, but are looking to do some exploring. I've been to Philly a bunch, my mom grew up there, so I know the city fairly well. But I've never done much food exploring there, other than looking for cheesesteaks and hot pretzels. So, what should a foodie do with three days in Philly? Thanks for your help.