Dubai is the most populous city in the UAE . It is located on the southeast coast of the Arabian Gulf and is one of the seven emirates that make up the state. Abu Dhabi and Dubai are the only UAE to veto sensitive issues of national importance in the country's legislature. The city of Dubai is located on the northern coast of the emirate and heads the Dubai-Sharjah-Ajman metropolitan area. Dubai is set to host the World Expo 2020 .Dubai has emerged as an international city and business hub in the Middle East . was chosen as the capital of the Arab media for the year 2020 .