The Broletto complex (ancient municipal palace) is comprised of buildings that date back to different periods. Despite their dissimilar architectural, decorative and artistic features, these buildings seem to blend well together around their picturesque, quadrilateral courtyard. The buildings are known as follows: along Corso Italia, the Arengo Palace (13th century), with traces just below the roof of a painted frieze that dates back to 1240-70; along Via Rosselli, the Palace of the Podestà (14th-15th centuries), with its decorations in terracotta and remains of frescos; to the right of this latter, the Paratici Palace (13th century), which was enlarged in the 17th century with an elegant loggia; and lastly, the Referendari Palace (14th-15th centuries).