Ponte Vecchio and Palazzo della Signoria are two of the symbols of Florence , the bridge , one of the most famous in the world , spanning the Arno River, with the Vasari Corridor unites Palazzo Vecchio , also called the Palazzo della Signoria , and Palazzo Pitti . Palazzo della Signoria , now the town hall of the city , is a fourteenth-century structure that was originally called Palazzo dei Priori . In addition to the mayor now it houses the museum that asposte works by important artists such as Vasari , Ghirlandaio and Bronzino .
