قصبة الجزائر
Indeed only in the 10th century started to be again developed by Buluggin ibn Ziri, a Berber who funded Algeria under zirid dynasty, to what is now the capital of modern Algeria. Indeed the Casbah of Algiers (a UNESCO world heritage site) is founded mainly on the ruins of old Icosium. It is a mid-sized city which, built on a hill, goes down towards the sea and is divided in two: the High city and the Low city, that now are dangerously crumbling