United Arab Emirates, federation of seven emirates along the eastern coast of the Arabian Peninsula. The United Arab Emirates or simply the Emirates is a country in Western Asia. It is located at the eastern end of the Arabian Peninsula, and shares borders with Oman and Saudi Arabia, while having maritime borders in the Persian Gulf with Qatar and Iran. Abu Dhabi is the nation's capital, while Dubai, the most populous city, is an international hub. Dubai is a city and emirate in the United Arab Emirates known for its extravagance of shopping, ultramodern design, and high-spirited nightlife scene. Burj Khalifa, an 830 m-tall pinnacle, rules the high rise-filled horizon. At its foot lies Dubai Fountain, with planes and lights arranged to music. On counterfeit islands simply seaward is Atlantis, The Palm, a retreat with water and marine-creature parks.