Chicago II ~ Wrigley Building (Chewing Gum Industry)
The Wrigley Building (400-410 North Michigan Avenue, Near North Side, Chicago, Illinois) is a skyscraper located directly across Michigan Avenue from the Tribune Tower on the Magnificent Mile. It was built to house the corporate headquarters of the Wrigley Company.
When ground was broken for the Wrigley Building in 1920, there were no major office buildings north of the Chicago River and the Michigan Avenue Bridge, which spans the river just south of the building was still under construction. The land was selected by chewing gum magnate William Wrigley Jr. to headquarter his gum company