Hint: You can’t get directions from Mapquest to get to the Pittsburgh zoo. Not the last I heard, anyways. Apparently the road the zoo is on isn’t actually recognized as a real road by the US census, or something like that, so Mapquest will (or at least used to) send you to some random road in some random residential district. Now I think Mapquest at least links you to the zoo’s website. But anyways, get driving directions from the zoo’s website or call them. It’s definitely worth going, you just don’t want to get lost on the way there.