This might be a little late, but: park a station square, ride the incline to the top of Mt Washington. The view is one of a kind. Make reservation to ride the Duck from Station Square, it's an amfibious (spelling?) vehicle that will tour the city by water and land, very cool.
If you only have a couple hours, just drive to Mt. Washington and find the Monongahela and Duquesne Inclines. Each one has fantastic views of the cit, good place for a panorama.