John Deere Headquarters, 1957-63
Eero Saarinen

The goal of the proposed scheme was threefold: to provide maximum efficiency of space for future expansion in a flexible plan, to create a peaceful environment, and to translate the character of Deere products into architecture. Saarinen saw strength as an essential trait of Deere’s products, so he chose core ten steel to produce, in his own words, “a building which is bold and direct, using metal in a strong way, a metal that if unpainted a rust coating forms which becomes a protective skin over the steel itself.”