Peoria - Caterpillar Administration Building
I worked in the Caterpillar Tractor Co. Adminstration Building. It was built in the late 1960s, The building is in the shape of a cross. The center contains building utilities, escalators and elevators, etc. Most of the wings are open office areas, with private or semi-private offices along most of the window areas. Executive offices and the library are on the seventh floor, which is set back from the other floors, and is partly visible in this photo.
The company is now Caterpillar Inc., The building is called Caterpillar World Headquarters.