Siena Cathedral
The region contains numerous museums and art galleries, many housing some of the world's most precious works of art. Such museums include the Uffizi, which keeps Botticelli's "The Birth of Venus", the Palazzo Pitti, and the Bargello, to name a few. Most of the frescos, sculptures and paintings in Tuscany are held in the region's abundant churches and cathedrals, such as Florence Cathedral, Siena Cathedral, Pisa Cathedral and the Collegiata di San Gimignano.