Chahar Darakht Mosque is one of the most important and impressive works of Birjand, Southern Khorasan Province. It dates back to the Safavid period. The main parts of Chahar Darakht Mosque are: entrance, columned shabestan, small altar and arcades altar, courtyard of the mosque and the form of windows and lighters. The original image is 20MB and in 5760*3840 pixels .