Illinois Institute of Technology Academic Campus or IIT Main Campus is one of five campuses of the Illinois Institute of Technology. It is located in the Douglas community area and has an official address of 3300 South Federal Street and is roughly bounded by 31st Street, State Street, 35th Street and the Dan Ryan Expressway. Its Main Building and Machinery Hall were designated a Chicago Landmark on May 26, 2004. The entire Academic Campus was designated as a National Register of Historic Places listing on August 12, 2005.