Historical Background
St. Sophia Cathedral in Vologda is the city's oldest surviving stone building, erected in 1568–1570 on the orders of Ivan the Terrible. It stands within the Vologda Kremlin and, together with the Resurrection Cathedral, is a cathedral of the Vologda Metropolis. Inside are 17th-century frescoes and an iconostasis from the first half of the 18th century. In 1923 the cathedral was closed and handed over to the local history museum. It housed an exhibition on the history of religion and atheism, which included a Foucault pendulum installed in 1929. Since 1935 the cathedral has been a monument of federal significance.

