Show st isaacs cathedral the dome of st isaac s cathedral in st petersburg is the most con object in the city it is cov ered with copper overlaid with pure gold no less than worth of gold being melted down for the pur pose entering the cathedral by the magnificent bronze doors forty tour feet wide and thirty feet high said to be the largest in the world the visitor Is overwhelmed by its rich ness and massive splendor the dome of the shrine is supported by eight corinthian pillars of malachite malac nite div en by prince demidoff and valued at 1 the total cost of this cathedral Is estimated at 50 |