This July 14, 2010 photo shows the Wrigley Building, left, on Michigan Avenue, in Chicago. The Wm. Wrigley Jr. Co. announced Monday, Sept. 19, 2011, the iconic Chicago skyscraper has been sold to the ... more 
This July 14, 2010 photo shows the Wrigley Building, left, on Michigan Avenue, in Chicago. The Wm. Wrigley Jr. Co. announced Monday, Sept. 19, 2011, the iconic Chicago skyscraper has been sold to the Chicago-based investment firm of BDT Capital Partners. Groupon co-founders Brad Keywell and Eric Lefkofsky and Zeller Realty Group are minority partners in the deal. The buyers are seeking landmark status for the 90-year-old building. (AP Photo/Kiichiro Sato) less 
1 / 1
Associated Press | Photo By Kiichiro Sato
Mon, Sep 19, 2011 11:39 PM EDT