Pittsburgh has a set of concentric "belts" which surround the city to provide easy access from one area of the city to another without having to travel downtown. I'm not quite sure how well this works, but it sounds like it would be a good way to sight-see in the Pittsburgh area. Maybe Heather and I will take a Sunday drive one day after the bar.
Incidentely, the blue belt passes down Shady Avenue, a mere half-mile from our home in Squirrel Hill. Check out Rainbow Connections