Established in 1852, the Lanificio di Stia was once the heart of the wool industry in the Arno Valley. The mill employed over 500 workers and produced around 700,000 meters of cloth per year. At its peak, the factory was an official supplier to the House of Savoy. As the wool industry declined, the mill was closed in 2000. However, in 2010, the “Luigi e Simonetta Lombard” Foundation revived the mill as the Museum of the Art of Wool. The museum preserves the rich textile history of the region, which includes the creation of the famous “panno casentino” cloth. This unique fabric was initially a rustic cloth worn by monks and mountaineers but later gained popularity among influential figures.