The birth and development of San Casciano dei Bagni are essentially linked to the presence of thermal waters: 42 sources at an average temperature of 40°C with a total capacity of approximately 5.5 million liters of water per day, given that puts San Casciano in third place in Europe for flow of thermal water. Between the XVII and XVIII century the Etruscan Lucumone di Chiusi, Porsenna, founded the "Bagni Chiusini", appreciated and frequented subsequently even by the Romans, you want for the effectiveness of these waters, you want for the proximity to Rome itself and the Via Cassia. The vitality of this center is also evidenced by the early penetration of Christianity and already in the IV-V century existed in San Casciano a parish entitled to Saint Mary "ad Balneo". The thirteenth century is the century of the general recovery of thermalism and with it also reborn San Casciano, also thanks to its closeness to the Via Francigena, the important artery of connection between Europe, North Italy and Rome. To remember in this period the misadventure of the abbot of Cluny, kidnapped by Ghino di Tacco while being in San Casciano to treat sore liver and stomach as well as recalled by Boccaccio, in II news of X day of the Decameron. Here everything is nature and wellness, and the thermal waters are still flowing dear to the Etruscans, their discoverers. The Romans, echoing the customs of their predecessors, going to the spa to treat - tells the poet Horace - Diseases of the liver and of the bile. In the Seventeenth Century mineral waters and sulfurous returned in vogue with the Grand Dukes of Tuscany, who gave today's accommodation at the spa building. All around the Tuscan countryside where, despite the recovery of the physical form, one may sin with a chianina steak. The image in which it presents San Casciano dei Bagni today is that of the castle with the walls and the tower. The castle is a fake from the twentieth century, but well integrated in the surrounding environment. From the belvedere of Piazza Matteotti you can admire one of the most beautiful views of the Tuscan countryside. Inside the village numerous palaces and churches remind us of the importance of the place. The presence of restorative and curative of the springs was worth the detour from Radicofani, on the Via Francigena, to San Casciano. Entering the narrow alleys by significant street names like Via della Pace e Via del Silenzio, goes down to the door in travertine blocks more difficult by storm because at the top of a steep climb. If you move to the other side of the village you can reach the oratory of the sixteenth-century which houses a fresco of Pomarancio.