ST. ISAAC CATHEDRAL:
It is one of the most interesting monuments of the russian architecture of XIX century. The size of its gilt dome which is visible from afar, is the fourth in the Europe . A fantastic panoramic sight is open on the city from the colonnade of the cathedral height of which is 43 meters. The cathedral is covered with grey marble in height of 101,5 meters and its more than 112 columns are made from solid 114-toned granite. It is distinguished from all Russian cathedrals by its interior which is the real treasury of the Beautiful Arts. The wall painting, the statues made from the gilt bronze, 62 mosaics, the numerous versions of a stone, such as malachite, lazurite and 14 types of a marble, are used in the decoration. Nowadays the cathedral functions as a museum. But during the most important orthodox holidays the church service is hold here.