Torre di Arnolfo, Medieval tower and palace in Colle di Val d'Elsa, Italy.

Torre di Arnolfo is a house-tower in Colle di Val d'Elsa, entered from via del Castello opposite the Torre dei Pasci. Its south facade above via delle Romite is stone up to the height of the adjoining houses, with a terracotta upper section. The broad side walls have no windows apart from one opening on the east side.

The structure dates to medieval times as a residence and defensive building for one of the city's influential families. It is closely connected to Arnolfo di Cambio, a renowned architect born into this family who later designed buildings across Tuscany and became a major figure in Italian architecture.

The tower is the birthplace of Arnolfo di Cambio, the architect and sculptor born around 1245. Tradition holds that the Sienese noblewoman Sapìa Salvani watched the 1269 defeat of Siena's forces from here, an episode Dante recalls in the thirteenth canto of Purgatorio. Inside, frescoes by Gino Terreni depict scenes of the battle of Colle.

The tower sits in Colle Alta, the upper section of town, and is easily reached from via del Castello by walking through the medieval streets. The location involves steep stairs and narrow passages, so comfortable shoes are helpful when exploring this part of the town.

Inside, private restoration added frescoes by Gino Terreni depicting scenes from the 1269 Battle of Colle, in which Siena's forces were defeated by Florence and its ally Colle. Tradition holds that the Sienese noblewoman Sapìa Salvani watched that defeat from this tower, an episode Dante recalls in the thirteenth canto of Purgatorio.