- Saint Isaac's Cathedral, which has actually been a museum since 1931, is an enormous neoclassical building that dominates St Petersburg's skyline.
- Today St. Isaac Cathedral in St. Petersburg has the status of a museum, but on the days of the most significant Christian holidays, religious services are held here.
- During the Siege of Leningrad, treasures and artwork from the city’s museums were stored in the cathedral’s basement, and St Isaac’s Square was used to grow food.
- Hundreds of workers participated in the construction of St. Isaac’s cathedral among them was a talented woodcarver Maxim Salin.
- Before the 1917 revolution, St. Isaac’s Cathedral was the main cathedral of St. Petersburg, and only after 1937 it became a historical and art museum.
- St Isaac Cathedral is not located in St Isaac Square. The cathedral is a block beyond the canal bridge and small plaza called the square.
- Saint Isaac's Cathedral stands as a monumental landmark in St. Petersburg, Russia, reflecting the city's architectural ambition during the 19th century.
- Nowadays, many tourists climb to the colonnade of St. Isaac's Cathedral. Here from the height of 43 meters, one can enjoy the panoramic view of the city.
- He was instructed to reconstruct Isaac, but the condition was set to completely preserve the altar part of the temple. View of the dome of St. Isaac's Cathedral.
- St. Isaac's Cathedral in St. Petersburg, Russia is the largest cathedral in that city and was the largest church in Russia when it was built (101.5 meters high).