The best and worst part of Pittsburgh is all of the underpasses, overpasses, tunnels and bridges. If you don't know what you are doing, and even if you have a GPS, you will find yourself on the wrong side of the river more than once in not that big a city. My absolute favorite is when 3 lanes condense to 1 lane, going around curve. Or trying to get over 4 lanes of traffic in the length of the bridge in order to get to an exit that still takes you to the wrong side of the river. That is why I we say goodbye to model week with this apt picture of a road scene that makes very little sense.