ey resembled instruction manuals. An example is his recipe for the International Style: raise the building on stilts, mix in a free-flowing floor plan, make the walls independent of the structure, add horizontal strip windows and top it off with a roof garden. What is most memorable about the austere, white-walled villas that he built after World War I in and around Paris is their cool beauty and their airy sense of space. "A house is a machine for living in," he wrote. The machines he admired most were ocean liners, and his architecture spoke of sun and wind and the sea. By 1950 he had changed course, abandoning Purism, as he called it, for something more robust and sculptural. His spartan, lightweight architecture turned rustic, with heavy walls of brick and fieldstone and splashes of bright color. He discovered the potential of reinforced concrete and made it his own, leaving the material crudely unfinished, inside and out, the marks of wooden formwork plainly visible. Concrete allowed Le Corbusier to explore unusual shapes. The billowing roof of the chapel at Ronchamp resembles a nun's wimple; the studios of the Carpenter Center for Visual Arts at Harvard push out of the building like huge cellos. For the state capital of Chandigarh in India, he created a temple precinct of heroic structures that appear prehistoric. Le Corbusier says, "Modern town planning comes to birth with a new architecture," he wrote in a book titled simply Urbanism. "By this immense step in evolution, so brutal and so overwhelming, we burn our bridges and break with the past." There were to be no more congested streets and sidewalks, no more bustling public squares, no more untidy neighborhoods. People would live in hygienic, regimented high-rise towers, set far apart in a park-like landscape. This rational city would be separated into discrete zones for working, living and leisure. Above all, everything should be done on a big scale--big buildi...