Inside the town of Agliana that has 15,000 inhabitants and that is in the province of Arezzo, the Torrione that Castruccio Castracani ordered to be built in 1325 can be visited, while the church of St. Peter, the oratory of the Compagnia and the church of San Michele can be admired in the neighbourhoods.

Agliana is a flat town set between Prato and Pistoia and it has belonged to the latter since 1927, while it got its autonomy in 1913. The area was inhabited in the Roman times. The first built-up area developed as a village in the Early Middle Ages, when the small centre of "Alina", a name linked to its closeness to the stream Agna, rose.
At least at the beginning, the town was a feud of the counts Guidi, feudatories of the empire, and it was partially ceded to the bishopric of Pistoia and part to the Pazzi, Florentine nobles. In the XIV century, Castruccio Castracani was dominating the area of Pistoia and he settled the first fortifications in Agliana in 1325 during the siege of Pistoia. Its defences, yet, could not prevent Agliana from being pillaged by Giovanni di Boemia's militias some years later.
In 1401, the village became part of the Florentine Republic and merged into a Town hall with the town Montale. The two towns alternated as chief towns. Agliana's statutes of 1415, yet, show a certain administrative autonomy Florence had allowed it to have. In 1776, after the Leopoldine reforms for the reorganization of the territories in the Grand Duchy of Tuscany, Montale was organized as an autonomous "comunitas" also including Agliana and its territories inside its borders.
The development of the town was mainly due to its closeness to the Cassia way connecting Lucca with Pistoia and Florence. Its strategic position and the strong anti-Fascist sentiment of the inhabitants of Agliana made of this town one of the bases of the Partisan fight in the Apennine in Pistoia. The group that freed the town on 4 September 1944 was called just "Agliana".