Aon (company)
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Aon plc is a British-American professional services and management consulting firm that offers a range of risk-mitigation products. Aon has approximately 50,000 employees across 120 countries.
Headquarters at 122 Leadenhall Street, London
Aon's corporate headquarters in Chicago at the Aon Center.
Aon Center (Chicago)
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The Aon Center is a modern super tall skyscraper east of the Chicago Loop, Chicago, Illinois, United States, designed by architect firms Edward Durell Stone and The Perkins and Will partnership, and completed in 1973 as the Standard Oil Building. With 83 floors and a height of 1,136 feet (346 m), it is the fourth-tallest building in Chicago, surpassed in height by Willis Tower, Trump International Hotel and Tower, and St Regis Chicago.
The Aon Center, designed by Edward Durell Stone
View from Buckingham Fountain of the building while it was under-construction
Aon Center in the 1990s during its refacing, with temporary work elevators erected in the building's corners
From the east