A brooding, horseshoe-shaped Russian Orthodox church that was turned into a museum of Soviet atheism and then turned back into a church. Tours are available after noon. Services are held daily at 9 or 10 am and 6 pm (with choir). Daily 8 am-8 pm. Free (tours range 100 rubles-300 rubles depending on the duration and size of the group). Kazanskaya Ploshchad 2 (on Nevsky Prospekt), St. Petersburg. Phone 812-570-4528. http://www.kazansky-spb.ru.