CONCERNING THE WAY TO GOVERN CITIES OR PRINCIPALITIES WHICH LIVED UNDER THEIR OWN LAWS BEFORE THEY WERE ANNEXED The Carta della Catena from 1490 is a panorama of Florence; this detail reveals the Arno, as well as impressive city bridges and walls. ❖ THE ART OF POWER A detail from one of Giorgio Vasari’s 1565 paintings on the ceiling of the Salone dei Cinquecento celebrating Florence’s triumph over Pisa. 50 ❖