I lived in Pgh. for 6 years (7th-12th grade), and my family still lives there. That's a very good point about the cultural institutions -- though in my experience, they're woefully underattended. It's possible to hang out at the zoo, conservatory, science museum, etc. ...but my family was thought to be a bit odd for actually doing so. (Of course, we lived in the wealthy suburban soccer mom part, not the university-intellectual part, so that's probably why. Neighborhoods have messages, too.)