PienzaPienza, a small hill town in north central Italy, represents one of the major architectural masterpieces of the Italian Renaissance. Starting in 1459, under the sponsorship of Pope Pius II, it was rebuilt into a model Renaissance cityscape. Renamed in the pope's honor, Pienza is both a monument to papal will and the high point in the career of the supervising architect, Bernardo Rossellino. Because its physical state has changed only slightly since