Palazzo Pubblico – magnificent Palace in Siena, located on the main city square Piazza del Campo. Its construction began in 1297 – initially it was assumed that the Palace will meet the Republican government, consisting of the mayor podestà and Council of Nine.

The appearance of the Palazzo is a beautiful example of medieval Italian architecture with the influence of the Gothic style. The lower floor is built of stone, and the upper toothed – brick. The facade of the Palace several concave inside that predefined slight bulge Piazza del Campo, the Central element of which is the Palazzo. The bell tower Torre del Mangia was built in the first half of the 14th century and decorated Lippo memmi. The tower was designed to surpass the height of the tower adjacent to Florence's main rival Siena. At the time, Torre del Mangia was the tallest structure in Italy. In the mid-14th century it was supplied with a mechanical clock.

Almost every large room of the Palazzo Pubblico decorated with frescoes, rather unusually for that period, since they were written at the behest of the rulers of the city, and not at the behest of a Church or religious brotherhood. Another unusual feature of these frescoes is that many of them depict secular subjects rather than religious, which was typical of Italian art of the 14th century. The most famous frescoes of the Palazzo are those that are located in the Hall of the Nine, they belong to the brush of Ambrogio Lorenzetti and known under the General name "Allegory and effects of Good and Bad governance". In the scene with the image of Good governance can be seen thriving city with dancing in the streets by the people, and under Bad Governance, rampant crime, and the ruined city sick people roam. Unfortunately, this cycle, as well as many other frescoes in the Palazzo, seriously damaged. One reason for this is that once the building was occupied by the storage of salt, which has absorbed all the moisture from the walls, causing the drying of the plaster and flaking frescoes.