Museo Civico (Civic Museum)

The Museo Civico is situated in the Palazzo Pubblico and has several rooms. Among the most important of these is the Sala del Mappamondo, which hosts Simone Martini's Maestą, the Sala della Pace and the Sala dei Nove, so called because it was the seat of the "governo dei nove" (the government of nine), decorated by a series of frescoes by Ambrogio Lorenzetti.

Other important rooms include the Sala della Balia, the Sala dei Palestri and an exquisite chapel decorated with frescoes by Taddeo di Bartolo.