Chogha Zanbil is an ancient Elamite complex in the Khuzestan province of Iran. It is one of the few existent ziggurats outside of Mesopotamia, designated by UNESCO. It lies approximately 30 km south-east of Susa and 80 km north of Ahvaz. It was built about 1250 BC by the king Untash-Napirisha, mainly to honor the great god Inshushinak. Its original name was Dur Untash, which means “town of Untash”.