Come to think of it, I really didn't expect PNC to be number one. It's just not the one I think about, but the description of the bridges and the skyline, and the picture backs it up. Had family friends growing up who lived in Pittsburgh in the late 90s/early 00s, and I have some small memory of maybe going to a game there but nothing definitive and I would have been young. May need to find a reason to visit again.