The Kalyazin Bell Tower is a Neoclassical campanile rising to a height of 74.5 metres (244 ft) over the waters the Volga River opposite the old town of Kalyazin, in Tver Oblast, northeastern Russia. The belfry was built in 1796—1800 as part of the Monastery of St. Nicholas.When Joseph Stalin ordered the construction of the Uglich Dam in 1939, the old part of Kalyazin, including several medieval structures, was submerged under the reservoir's waters. This included the Saint Nicholas Monastery.