The fifteenth-century Italian artist Piero della Francesca painted a familiar world. Roads wind through hilly landscapes, run past farms, sheds, barns, and villages. This is the world in which Piero lived. At the same time, Piero's paintings depict a world that is distant. The subjects of his pictures are often Christian and that means that their setting is the Holy Land, a place Piero had never visited. The Realism of Piero della Francesca...