Doha (Arabic: الدوحة;, Ad-Dawḥah or Ad-Dōḥah) is the capital city of Qatar. It has a population of 400,051 (2005), and is at 25.3° N 51.5333° E, on the Persian Gulf. The city has an airport called Doha International Airport. Doha also has major oil and fishing industries. Doha has an an area devoted to research and education called Education City. Doha was the host of the 2006 Asian Games, a major Asian sporting event. Doha's leader is a sheikh named Sheikh Tamim. The official languag of Doha is English and Arabic. The biggest mall in Qatar is Qatar mall.