Tour to St.Isaac cathedral lasts about 1.5 hours and during this time you will:

• learn why the French architect of the Cathedral didn’t want to hurry and spent 40 years on construction
• learn why the large columns of the Cathedral which weigh about 100 tons each were erected before the walls were built
• learn why Russians were afraid that one day the cathedral would suddenly go down the earth and what steps were taken to avoid it
• and if you are strong and healthy you will be able to climb 330 steps and see the old St. Petersburg from cathedrals colonnade