Piazza della Signoria This is by far the most striking square in Florence. It was here, in 1497, that the famous "bonfire of the vanities" took place, when the fanatical friar Savonarola induced his followers to hurl their worldly goods into the flames; it was also here, a year later, that he was hanged as a heretic and, ironically, burned. A bronze plaque in the pavement marks the exact spot of his execution. Among many sculptures in the square, the Neptune Fountain, dating from between 1550 and 1575, wins the booby prize. It was created by Bartolomeo Ammannati, who considered it a failure himself. The Florentines call it Il Biancone, which may be translated as "the big white thing."