Milan is in the midst of its most successful Triennalea once-in-three-years show of industrial arts, dating back to 1907. This year 23 countries are participating, and a total turnout of 300,000 visitors is expected. There is plenty to see: Japanese porcelain. Scandinavian furniture, a geodesic dome designed by the U.S.'s R. Buckminster Fuller. But the show's foremost attraction by far, is a one-man pavilion celebrating the effervescent genius of Milan's own Gio Ponti.
At 65, Ponti is perhaps the world's top designer, and the busiest. He put up his own pavilion to display a living room, kitchen, bedroom and bath in which...