St. Isaac’s Cathedral, a church in St. Petersburg, Russia, is the third largest domed cathedral in the world. It was ordered by Tsar Alexander I in 1818, and after being built for 40 years by Auguste Montferrand, it was finished in 1858. It has a height of 102 meters and an interior space designed to hold 14,000 standing worshipers. The building has so much gold, marble, and heavy ... View Post