historical wall in Iran and it is the symbol of Tabriz city. This historical collection includes school, mosque and monastery. It`s been built in 8th century. Main materials of this building are mortar and lasting materials. A ruinous earth quake in 10th century ruined the whole historical buildings of Tabriz and many parts of Tabriz castle destroyed ,too. Nowadays, high walls and the altar of southern chamber of the mosque are signs of developing. The main elements of mosque are the walls of the arched balcony(Ivan) and the great carrier of arch.