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Aon Center

Aon Center, Chicago
2583
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Quick Facts
CityChicago
CountryUnited States
Year1973
Height346,3m / 1 136ft
Floors82
Realization
ArchitectEdward Durell Stone
Perkins & amp
Will partnership
EngineersPerkins & amp Will
DeveloperStandard Oil Co.
Building Info
NameAon Center
CategoryOffice Building
AliasAmoco Building
Standard Oil Building
Materialssteel
marble
granite
Address
200 East Randolph Street
Notes
Originally the world's tallest marble-clad structure
The original Carrara marble slabs turned out too thin and the building had to be reclad. The marble was replaced by thicker slabs of North Carolina speckled granite. The restoration started in 1990 and was finished in 1992.
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