Aon Center - Chicago - was created in 1973.
Aon Center is a building found at Chicago in USA.
Aon Center - Los Angeles - was created in 1973.
The Aon Center in Chicago, IL (aka the Amoco Building and the Standard Oil Building) is 1136 feet high. (346 m)
Aon center
The Aon Center, formerly known as the Amoco Building and the Standard Oil Building, is located in Chicago, Illinois. It is the city's third largest skyscraper.
As of July 2014, the market cap for Aon plc (AON) is $26,988,981,783.28.
The symbol for Aon plc in the NYSE is: AON.
Chicago's Willis Tower (formerly Sears Tower)
110
110
32 stories. (123.5 meters high)