The decoration of the northern wall is the Holy Gate, built in 1748 in the Baroque style. The gate is crowned by a figured pediment with two turrets on the sides and a stucco climbing plant ornament. Mosaic icons are placed in the niches of the central part of the pediment.

The building of the psalmist school, built in 1906-1909 on the site of the old walls and arsenal dismantled by the end of the XIX century, continues the line of the northern wall.