St. Sophia Cathedral
St. Sophia Cathedral was built between 1030 and 1060 as a replica of the St. Sophia Cathedrals of Novgorod and Kyiv. The church was closed during the Great Northern War (1700-1721) and fell into ruins afterwards. It was rebuilt in the 1740s in late Baroque style according to the plans of the German-Baltic architect Johann Christoph Glaubitz. The Soviets closed the cathedral in 1949 and used it as an archive warehouse. It was restored in 1967 to become a museum of atheism. Today the cathedral is used as a concert hall.