RADZIEJOWSKI TOWER (WIEŻA RADZIEJOWSKIEGO)

Built between the ^14th and ^17th centuries in Gothic-Baroque style, this is the cathedral's Italian-influenced campanile. It offers a view of the episcopal complex, as well as the rest of the city, the sea and the surrounding countryside. On a clear day, you can see the bay of Kaliningrad (Russian Federation). It houses a Foucault pendulum for measuring the Earth's motion, and its basement houses a planetarium, open daily.