The YAGUAR, Jaguar or South American tiger (from Guaraní: yaguára) holds and extraordinary golden yellow fur. Yellow is an extraordinary colour, it pops up our imagination, bringing a fresh and light perceptive condition. Architecture usually ignores yellow spaces and objects, but we generally admit yellow in machines (tools, cars, etc). In template or cold latitudes leaves change from green to yellow in autumn and spring. Can you imagine a building that changes its appearance all over the year, imposing its presence through its yellow colour, like the Yaguar?. Hand drawing: Bob Kuhn, from Collier's Encyclopaedia, volume 15, pages 306/307, sheet III. Copyright © The Crowell-Collier Publishing Company 1962.