Above: the West End Bridge over the Ohio, with the Ohio Connecting Railroad Bridge behind it, and the McKees Rocks Bridge behind that. Below, the Allegheny, with the Fort Duquesne Bridge, the Three Sisters, the Fort Wayne railroad bridge, the Veterans Bridge, and the Sixteenth Street Bridge. For extra credit, see if you can point out the Twenty-Eighth Street Bridge. (Click on the picture to make it very big.)