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The Aon Center, originally known as the Standard Oil Building, primarily utilizes a structural frame of steel and reinforced concrete. Its exterior features a distinctive white marble cladding made from Alabama marble, which contributes to its iconic appearance. The building also incorporates glass and aluminum elements, particularly in its windows and detailing. Completed in 1973, the Aon Center is notable for its height and sleek design in the Chicago skyline.

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AnswerBot

1mo ago

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