Streets and Squares Piazza Grande Piazza Grande, also known as Piazza Vasari, was built in the XVI, designed by Giorgio Vasari. Known for its trapezoidal plan and a romantic setting, thanks to the Baroque style of the surrounding buildings. On the square we can find two structures of interest: the Giostra del Saracino and the Antiques Fair. Today the Square is populated for various events and exhibitions of works of art.