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Saint Isaac’s Cathedral
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St. Petersburg: St. Isaac's Cathedral Saint Isaac's Cathedral St. Petersburg The bow of the cruiser Aurora, anchored in the Bolshaya Nevka River, and (centre) the Troitsky (Trinity) Bridge crossing the Neva River, St. Petersburg, Russia. Beyond (left background) is the dome of St. Isaac's cathedral.
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Russian:
Isaakiyevsky Sobor
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St. Petersburg: St. Isaac's Cathedral
St. Petersburg: St. Isaac's Cathedral St. Isaac's Cathedral, St. Petersburg.

Saint Isaac’s Cathedral

cathedral, Saint Petersburg, Russia
Also known as: Isaakiyevsky Sobor
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History
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.