PPG PLACE IN PITTSBURGH has, I am told 19,750 pieces of glass. There are fewer in this image. Isolating the very top of its 600-foot tower was more graphically interesting. This was shot from one of the city's many bridges. Most or all of them have pedestrian walkways, which is great for photographers. Click the image to view it in lightbox.
Nikon D7000, Nikkor 85mm, f8 at 1/250, EV +.33, ISO 100.