El Bulli went out with a bang: The "world's best restaurant," as the establishment in northeastern Spain is often called, served 50 dishes on its final menu Sunday, including "Clam Meringue," "Olive Spheres," and "Hot Cold Gin Fizz." Chef Ferran Adrià has no regrets. "People think I should be sad, but I feel the happiest man in the world," he said. "El Bulli is not closing. It's just transforming." The famous chef hopes to turn it into a culinary foundation by 2014.