Nalazi se u središnjoj Italiji u pretežno brdovitom predjelima regije Toskana. Ima oko 55 hiljada stanovnika i sjedište je istoimenog okruga. Prvo naselje osnovali su Etruščani 900. godine p.n.e. Zbog svog geografskog položaja Siena nije napredovala za vrijeme Rima. Prema legendi Sienu su osnovali potomci osnivača Rima. Pod Langobardima (germanski narod) grad doživljava procvat, a putevi koji povezuju Rim i sjever Italije iz sigurnosnih razloga počinju prolaziti kroz Sienu, tako da ona postaje važno trgovačko mjesto. Godine 1167. Siena je objavila nezavisnost od biskupske vlasti, da bi 1179. godine Siena dobila pisani Ustav. U gradu su sačuvane vrijedne znamenitosti poput Katedrale (Duomo), prekrasnog trg Piazza del Campo, Bazilike (Basilica Cateriniana di SanDomenico)… Poznata je po nekoliko svjetski priznatih vinskih područja. Od Firenze je udaljena oko 75 km i povezani su brzom autocestom.
It is located in central Italy in the predominantly hilly areas of the region of Tuscany. It has about 55,000 inhabitants and is the seat of the eponymous district. The first settlement was founded by the Etruscans 900 BC. Due to its geographic position, Siena has not progressed during the Roman Empire. According to the legend, Siena was founded by the descendants of the founders of Rome. Under the Lombards (Germanic people) the city flourished, and the roads linking Rome and northern Italy started to go through Sienafor security reasons, so that it became an important trading post. In 1167 Sienadeclared independence from the bishop’s authority, to receive a written Constitution in 1179. In the town,valuable sights are preserved such as the Cathedral (Duomo), the beautiful Piazza del Campo, and the Basilica (Basilica di Cateriniana San Domenico) … It is known for several world-renowned wine-growing regions. It is atabout 75 km distance from Florence and the two are connected via highway.