yerebatan cistern

ancient arc arch architecture asia attraction basilica built byzantine cave century chamber cistern civilization column constantinople construction culture destinations district dungeon east empire europe famous gorgon historic historical history horizontal illuminated illumination indoor indoors inside interior islam istanbul landmark light medieval medusa middle middleeastern national old oriental ottoman place reflection religion reservoir review room ruin ruined sarayburnu sarnici sarnaplusmn caplusmn sights southern statue stone storage structure style subterranean sultanahmet sunken tank tourism touristic travel turkey turkish underground vacations water yerebatan