FILE - This April 28, 2008 file photo shows the Wrigley Building on Michigan Avenue, in Chicago. The Wm. Wrigley Jr. Co. says it's leaving its iconic building to set up shop at its research and ... more 
FILE - This April 28, 2008 file photo shows the Wrigley Building on Michigan Avenue, in Chicago. The Wm. Wrigley Jr. Co. says it's leaving its iconic building to set up shop at its research and development center on Goose Island on the city's North Side. The gum giant says it will push to keep the Wrigley name on the building. (AP Photo/Jerry Lai, File) less 
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Associated Press | Photo By Jerry Lai, File
Fri, Jul 22, 2011 10:44 AM EDT