Palazzo Pubblico is not just the seat of Siena’s city government: it’s an open-air museum that holds centuries of history and art. Built between 1297 and 1310 by the Government of the Nine, the palace overlooks Piazza del Campo with its unmistakable Gothic facade of stone and brick. Inside, the Museo Civico houses masterpieces such as Simone Martini’s Maestà and Ambrogio Lorenzetti’s fresco cycle Allegory of Good and Bad Government, a unique work that conveys ideals of justice and peace.
What not to miss:
– Sala del Mappamondo: with frescoes by Simone Martini and historical views.
– Sala della Pace: Lorenzetti’s famous cycle, a masterpiece of medieval secular art.
– Torre del Mangia: 88 meters high, 400 steps for a stunning panorama of the city and Tuscan hills.
– Cappella di Piazza: elegant marble structure built in 1352 as a vow for the end of the plague.
Events nearby

Immerse yourself in Siena’s medieval history: Ambrogio Lorenzetti’s frescoes, Simone Martini’s Maestà, and the climb up Torre del Mangia for a breathtaking view of Piazza del Campo and the Tuscan countryside.
Good to know
Welcome to the Heart of Siena
A Brief History
- 1297-1310 – Construction of the palace
- 1312-1315 – Simone Martini paints the Maestà
- 1338-1339 – Ambrogio Lorenzetti completes the Good Government
- 1348 – Completion of the Torre del Mangia
- 1352 – Cappella di Piazza
The Frescoes of Good Government
Up the Torre del Mangia
Three Good Reasons
The Right Time
Must-See Surroundings
Itineraries nearby
💡 Did You Know…?
A fascinating curiosity: the Torre del Mangia takes its name from its first watchman, Giovanni di Duccio, nicknamed ‘Mangiaguadagni’ (earnings eater) for his habit of spending his salary immediately. Moreover, the palace’s architecture perfectly adapts to the curve of Piazza del Campo, symbolizing harmony between political power and the community. During your visit, look for the fresco of Guidoriccio da Fogliano: it celebrates the conquest of Montemassi and testifies to the military pride of the Sienese Republic.






