Russia - St. Isaac's Cathedral

St. Isaac's Cathedral. 1818-58. A. de Montferrand.

Sent by Ekaterina, a postcrosser from St. Petersburg in Russia.

This is from Wikipedia : Saint Isaac's Cathedral or Isaakievskiy Sobor (Russian: Исаа́киевский Собо́р) in Saint Petersburg, Russia is the largest Russian Orthodox cathedral (sobor) in the city and was the tallest Eastern Orthodox church upon its completion (subsequently surpassed only by the Cathedral of Christ the Saviour). It is dedicated to Saint Isaac of Dalmatia, a patron saint of Peter the Great who had been born on the feast day of that saint.