the shrine of khwaja abu nasr parsa or green mosque in balkh, afghanistan

abu afghanistan ancient architecture bactria balkh blue brick building calligraphy culture decorated decoration dome domed geometric gohar green historic historical history islamic khwaja landmark mazar mazari mazarisharif minaret monument mosaic mosaics mosque muslim nasr northern old ornately parsa patterns portal province quranic religion religious rukh shad shah sharif shrine sky stylized tiles walls