The city of Al-Ain, part of a historical region which also includes the adjacent Omani town of Al-Buraimi, is noted for its forts, oases, aflāj (underground water channels), and archaeological sites such as those of Hili and Rumailah. Sites outside the city include Jebel Hafeet and Al-A'ankah Fort. Sheikh Zayed bin Sultan Al Nahyan had been the Ruler's Representative in this region, before becoming the Ruler of Abu Dhabi and President of the United Arab Emirates.