The open site was a marketplace established before the thirteenth century on a sloping site near the meeting point of the three hillside communities that coalesced to form Siena: the Castellare, the San Martino and the Camollia. The conformation of the ground turns the square into a big concave shell. The floor of the square is paved with red bricks in a fishbone pattern which is divided into a sunburst pattern by nine strips of travertine.
There
is also the Palazzo Comunale (town hall), unusually built on the lowest
part of the square, and also the tall, slender Mangia Tower (or Torre
del Mangia) that stands out against the sky (it reaches 102 metres
including the lightning conductor). At the base of the Palazzo is the
Chapel of the Virgin, or Chapel of the Square, constructed and voted for
by the Sienese, after the end of the terrible plague of 1348. - See
more at:
http://www.italyguides.it/en/tuscany/siena/piazza-del-campo#sthash.A59RAtKs.dpuf
The Mangia Tower (Torre del Mangia) stands over the square at a height of 88 meters. It was built in 1338-1348. The tower was built to be exactly the same height as the Siena Cathedral as a sign that the church and the state had equal amounts of power.
here
is also the Palazzo Comunale (town hall), unusually built on the lowest
part of the square, and also the tall, slender Mangia Tower (or Torre
del Mangia) that stands out against the sky (it reaches 102 metres
including the lightning conductor). At the base of the Palazzo is the
Chapel of the Virgin, or Chapel of the Square, constructed and voted for
by the Sienese, after the end of the terrible plague of 1348. - See
more at:
http://www.italyguides.it/en/tuscany/siena/piazza-del-campo#sthash.A59RAtKs.dpuf