Editor's note: The hills and valleys of the Pittsburgh area provide multiple spectacular views of the city’s skyline, one of the prettiest in the U.S. The view from Mt. Washington is lovely, as is the vista from Shenley Park, to name just two. But the most in-your-face view is achieved by driving through the Ft. Pitt tunnel: you emerge and downtown practically slaps you in the face, in the best possible way. Enjoy some gorgeous Pittsburgh Skyline wallpapers!