The Spaso-Preobrazhensky (Transfiguration) Monastery was founded in the 12th century, making it one of the oldest monastic foundations in Russia. The whitewashed walls, towers, and cathedral visible today were built mainly in the 16th century. During the Time of Troubles in 1612, when the Poles occupied Moscow, Prince Pozharsky gathered his army here before marching to liberate the capital.
Today the monastery complex serves as Yaroslavl's main history museum. The collections include medieval icons, liturgical objects, folk art, and natural history exhibits spread across several buildings within the walls. The Bell Tower at the entrance gate offers a panoramic view of the historic centre. The monastery is open daily; allow two hours to see it properly.