Florence contains several palaces and buildings from various eras. The Palazzo Vecchio is the town hall of Florence and also an art museum. This large Romanesque crenellated fortress-palace overlooks the Piazza della Signoria with its copy of Michelangelo's David statue as well as the gallery of statues in the adjacent Loggia dei Lanzi. Originally called the "Palazzo della Signoria", after the Signoria of Florence, the ruling body of the Republic of Florence, it was also given several other names: "Palazzo del Popolo", "Palazzo dei Priori", and "Palazzo Ducale", in accordance with the varying use of the palace during its long history. The building acquired its current name when the Medici duke's residence was moved across the Arno to the Palazzo Pitti. It is linked to the Uffizi and the Palazzo Pitti through the Corridoio Vasariano.