Interior of the Holy Sophia cathedral in Harbin china.Holy Sophia cathedral is centralized type, 77 meters long from east to west, 71.7 meters long from south to north, main part is a huge semicircle dome, very 15 meters high, the diameter of centre of the church is 32.6 meters, have 40 ribs in all, join the shelf on four blocks of wood 7.6 meters wide through the sail.