ruins of the qal'at al-bahrain or the portuguese fort, ancient fortification and capital of dilmun civilization in manama

remain ruins architecture qal 039 albahrain portuguese fort fortress citadel unesco world heritage site old historic ancient medieval stone structure building archaeology dilmun civilization capital sand preserved persian gulf manama bahrain middle east asia flag flagpole waving amazing incredible impressive outstanding scenic landscape view sunny sky outdoor daytime tranquil travel tourism holiday vacation leisure sightseeing visit copy space