Century-old buildings of the Historic Michigan Boulevard District stand near East Monroe Street and Millennium Park in Chicago, Illinois. These include the Monroe Building (1910), University Club (1907), Chicago Athletic Club (1893), Willoughby Tower (1927), and Montgomery Ward (1897). Behind them is the Legacy Tower, a 72-story skyscraper by the architectural firm Solomon, Cordwell, and Buenz, which was built in 2009.Photograph: Diego Delso