The town of Vaglia is set in an area inhabited since remote times, by Ligures, Etruscans and, finally, Romans. During the Early Middle Age the village developed around a Parish Churcj of San Pietro, built before the XI century; it was controlled by Bishops since the XIV century, when it passed under the jurisdiction of Florence.
During the VIII century, the Florentine Bishops built the Church of San Pietro, entirely refurbished in the XVIII century, which preserves precious 17th century paintings, a wooden Crucifix said to be ve work of Giambologna, numerous paintings by Angelo Nardi and a panel portraying the Madonna with Child, a Florentine artwork dating back to the first half of the 14th century. Of striking interest is the Baptismal Font in glazed terracotta from the school of Giovanni della Robbia.
The XV century Parish Church of San Cresci in macioli, with a Romanesque style bell tower, the Romanesque style Church of San Romolo, with a valuable glazed terracotta altar-piece by Andea della Robbia, and the Montesenario Convent, built in 1241 by seven Florentine monks, are interesting too.