Built in 1968, this is the only design in Pittsburgh by Ludwig Mies van der Rohe; it was one of his last works. (The IBM Building at Allegheny Center was designed by Mies’ firm after Mies died.) This is a composite of four long-telephoto photographs taken from the back streets of the South Side across the Monongahela River. At full magnification, atmospheric distortion makes the straight lines slightly wavy.
We also have some closer pictures of Mellon Hall.