Citadel of Erbil located in the middle of erbil city the castle was built with a circular shape and stands 30 m high above a hill it dates back to 6000 years , it has 510 residential mmas (mula saleem achalaby - sheikh Jameel afandy ) in addition to the great mosque and the old bathroom , the castle is considered to be the oldest capital that has been inhabited from its construction to this very day .
Erbil Citadel is a fortified settlement on top of an imposing ovoid-shaped tell (a hill created by many generations of people living and rebuilding on the same spot) in the Kurdistan region, Erbil Governorate. A continuous wall of tall 19th-century facades still conveys the visual impression of an impregnable fortress, dominating the city of Erbil. The citadel features a peculiar fan-like pattern dating back to Erbil’s late Ottoman phase. Written and iconographic historical records document the antiquity of settlement on the site – Erbil corresponds to ancient Arbela, an important Assyrian political and religious centre-while archaeological finds and investigations suggest that the mound conceals the levels and remains of previous settlements.