description Aon Center Chicago Overview
Aon Center is a 346-meter skyscraper in Chicago, Illinois, completed in 1973 as the Standard Oil Building and ranking among the tallest structures in the city.
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Aon Center Chicago ranks #65 of 206 in the Skyscraper ranking, behind Torre BBVA Mexico, ahead of Tianjin Chow Tai Fook Binhai Center.
Major Chicago height landmark with clean modernist massing, though recladding history affects architectural reputation.
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