That picture is of the Federal Penitentiary at Leavenworth, not to be confused with the U.S. Disciplinary Barracks at Fort Leavenworth.
Actually, the picture is of the Disciplinary Barracks, the Federal Pen is more of a Greek Revival architecture. Unfortunately, the building is structurally unsound and has been for years. Has to come down, or will fall down on its own. The new DB is about half the size (500 inmate capacity vice 1000) and will not be used to provide for incarceration for the length of the court martial sentence. When all military appeals are exhausted, you are remanded to the federal penal system, you get a short ride in a white van to the federal pen; and, you get to meet your new best friend: Bubba! Be nice to Bubba, he's very sensitive.