caliphate ruin wall atop local sandstone bedrock in stage of being rebuilt

caliphate limestone sandstone castle beige built seige ruin tower stronghold middle east turkiye turkey muslim ancient hold battlement construction methods sedimentary rock local building materials materiele resources cut masonry craftsmanship history historical historic secure security high ground occupy neglect refurbish abandoned restore restoration process funding funded siege carved carving weathering time temporal change oxidation iron reddish black stains staining oxidized discoloration clean cleaning rebuilding accurate historically accuracy coast coastal fortification fortified kingdom location citadel fortress bastion defense defensive mediterranean