Keywords: Great Lakes BLDG 521 Gunnery School.jpg Former US Navy Gunnery School 1954-2005 Naval Station Great Lakes Building 521 demolished 2012 Designed by Bruce Graham co-designer of the former Sears Tower and John Hancock Center of the Chicago office of Skidmore Owings Merrill http //www history navy mil/museums/greatlakes/building521/photos/521-1 jpg from http //www history navy mil/museums/greatlakes/building521/521 htm before 2012 US Navy published by US Navy Museum Great Lakes PD-USN Naval Station Great Lakes PD-USGov-Military-Navy |