sentences:  Iizaka is one of the most famous onsen towns in the Tōhoku region with over 70 hotels and ryokan along the banks of the Surikami River devoted to the enterprise.The ruins of Otori Castle, built by the Sato family, (lords of Iizaka) in the 12th century and Ioji Temple are also located in Iizaka.Ioji Temple contains a "kuyo-to", a vertical slab stone monument, which has been declared an Important Prefectural Cultural Asset.