Aon Center in Chicago

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1136 ft. Originally known as the Standard Oil Building, The Aon Center is [[United States of America|America's]] fourth tallest building from base to roof, after the Empire State Building in [[New York City|New York]], and fifteenth tallest in the world by architectural detail. It was built in 1972 by architect Edward Stone and initially was faced with marble, but the windy city began to blow the marble off the sides of the building. The entire building had to be refaced with granite — a costly
Address: 200 E Randolph St