Prudential Guaranty Building

The Guaranty Building, now called the Prudential Building, is an early high rise in Buffalo, New York. It was finished in 1896 and was planned by Louis Sullivan and Dankmar Adler.Sullivan's plan for the building depended on his conviction that "shape takes after capacity". He and Adler separated the working into four zones.

The cellar was the mechanical and utility territory. Since this level was subterranean, it didn't appear on the substance of the building. The following zone was the ground-floor zone which was the general population regions for road confronting shops, open passages, and halls. The third zone was the workplace floors with indistinguishable office cells grouped around the focal lift shafts.