The Palazzo Pubblico (town hall) is a historic palace in Siena, Tuscany, in central Italy. Located on the Piazza del Campo, it is one of the principal architectural landmarks of the city's historic center. Construction began in 1297 to serve as the seat of the Republic of Siena's government, which consisted of the Podestà and Council of Nine, the elected officials who performed executive functions (and judicial ones in secular matters). The palace is of medieval and Gothic architecture, and the interior is lined with frescoes--most importantly, the collection known as The Allegory of Good and Bad Government by Ambrogio Lorenzetti.
Architecture The outside of the structure is an example of Italian medieval architecture with Gothic influences. The lower story is stone while the upper crenellated stories are made of brick. At a time when brick as a finished face was rare, Siena preferred it to stone because it was cheaper; this allowed architects to use more expensive detailing elsewhere. The façade of the palace is curved slightly inwards (concave) to reflect the outwards curve (convex) of the Piazza del Campo, Siena's central square, of which the Palace is the focal point. At the top of this façade is a huge round flat bronze plate Christogram, the symbol used by Saint Bernardino. It was placed there by the government in 1425 in gratitude to the great preacher, a native Sienese, for his sermons aimed at quelling social and political factionalism and unrest.
The campanile or bell tower, Torre del Mangia, was built between 1325 and 1344; its crown was designed by the painter Lippo Memmi. The tower was designed to be taller than the tower in neighboring rival Florence; at the time it was the tallest structure in Italy. It was fitted with a mechanical clock during the mid-14th century. Its design has been used as the basis for several other campaniles, including the Dock Tower in Grimsby, England, constructed in 1852 and the Joseph Chamberlain Memorial Clock Tower in the Edgbaston campus of the University of Birmingham, which was completed in 1908. The upper-story windows of the Palazzo are heavily ornamented trefoil arches, typical of Sienese architecture. The pointed arches of all of the windows are a clear example of Gothic influence.
Frescoes
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