Beirut is the capital and largest city of Lebanon. No recent population census has been conducted, but 2007 estimates ranged from slightly more than 1 million to 2.2 million as part of Greater Beirut, which makes it the third-largest city in the Levant region and the fifteenth-largest in the Arab world. Located on a peninsula at the midpoint of Lebanon's Mediterranean coast, Beirut is an important regional seaport.