Arezzo's main medieval square is one of the most dramatically composed public spaces in Tuscany: it slopes, it's irregular, and it's ringed by buildings from different centuries — the Romanesque apse of Santa Maria della Pieve on one side, Vasari's Renaissance loggia on another, medieval towers and palazzo facades filling in the gaps.
On the first Sunday of each month (and the preceding Saturday), the square fills with antique dealers for the Fiera Antiquaria, one of the largest and best-known antique markets in Italy. The rest of the time it's quiet, with outdoor tables from the surrounding bars. Twice a year — in June and September — the Giostra del Saracino, a historic jousting tournament, is held here with full medieval pageantry.