I just stumbled across this page, but I'd like to rebut the posts that say Philly and Pittsburgh are the only places in the state worthy of a visit.
By all means guys, go and visit these cities. You need to understand though, These are dying, and in the case of Pittsburgh, dead cities. This isnt to say the smaller cities like Alletown, Altoona, and Easton are great places either. In many ways, theyre worse in the sense that they are small cities with big city problems.
Focusing on Philadelphia though, I just cant understand the attraction. Although I grew up 50 minutes away from Philly, I hadnt been downtown until I was 19. Why? I really didnt know at the time. Once I got there, I realized, "OH yeah..it sucks." There is nothing going on in this city. Sure, check out the Liberty Bell, Independence Mall, etc. South Street even. You got one day there. Outside these historic sites though, the city is covered in a distinct layer of grime. The people are largely rude. Overbites are prevalent. A better time--personally recommended--Pennsylvania Scenic Route 6. It goes all along the top of the state, with views of canyons, mountains, flora, fauna, etc. Check it out, Or just go to New York.