This striking blue-and-white structure is one of St. Petersburg's most beautiful churches. It now houses an art gallery. The yellow building next to the cathedral served as the Bolshevik headquarters between the February and October revolutions. In the evenings, the cathedral is often the place for classic- and religious-music concerts. Daily 11 am-8 pm (closed Wednesday). Gallery admission 200 rubles; tower visits an additional 200 rubles. Ploshchad Rastrelli 3, St. Petersburg. Phone 812-314-2168 or 812-577-1422. http://eng.cathedral.ru/smolny.
