Heliopolis (/ˌhiːliːˈɒpɵlɨs/; Ancient Greek: Ἡλιούπολις, "City of the Sun" or "City of Helios"; Egyptian: ỉwnw; Arabic: عين شمس‎ ʿĒn Šams, "Eye of the Sun") was one of the oldest cities of ancient Egypt, the capital of the 13th Lower Egyptian nome.