Saint Isaac’s Cathedral

St. Petersburg: St. Isaac's CathedralSt. Isaac's Cathedral, St. Petersburg.
Saint Isaac's Cathedral
Saint Isaac's CathedralSaint Isaac's Cathedral, St. Petersburg.

Saint Isaac’s Cathedral, iron-domed cathedral in St. Petersburg that was designed in Russian Empire style by Auguste de Montferrand. Covering 2.5 acres (1 hectare), it was completed in 1858 after four decades of construction. The granite and marble building is cruciform, and its great dome is one of the earliest examples of the use of iron as a structural material. The interior is decorated in a florid imitation of medieval ornamentation.

This article was most recently revised and updated by Kathleen Sheetz.
Citation Information
Article Title: Saint Isaac’s Cathedral
Website Name: Encyclopaedia Britannica
Publisher: Encyclopaedia Britannica, Inc.
Date Published: 09 June 2015
URL: https://www.britannica.comhttps://www.britannica.com/topic/Saint-Isaacs-Cathedral
Access Date: November 21, 2024