Charles Sheelers iconic image of the Albert Kahns Ford River Rouge Plant, with its criss crossing conveyors and spire like chimneys, is probably the most iconic image of the American Car manufacturing industry whose future, like Kahns original buildings, hangs in the balanceEven among architects, Albert Kahn is less renowned than Louis. But Albert Kahn is far more important in terms of the influence of his buildings. He is sometimes referred to as the architect of Detroit. Kahn invented the American factory style, taking early European modernism to the place where assembly lines were invented and developing an architectural style that was supremely innovative both in terms of construction and design. The plants he built are in many places around America, but most famously in Detroit, where, lie the car industry itself, some of his most important building lie in ruins.We have two favorite images in this list. One if of the abandoned Detroit Public Schools Book depository, with its once minimalist, clean modernism in absolute and total decay, overflowing with rotting books strewn across its floor. The other image is, of course, Charles Sheelers