Hanoi (UK: ha-, hə-NOY or US: hah-NOY; Vietnamese: Hà Nội [hàː nôjˀ] (listen)) is the capital city of Vietnam. It covers an area of 3,358.6 km2 (1,296.8 sq mi). It is the second largest city in Vietnam, with over eight million residents within the city proper and an estimated population of 20 million within the metropolitan area. Located in part of the Red River Delta, Hanoi is the commercial, cultural, and educational centre of Northern Vietnam. Having an estimated nominal GDP of US$32.8 billion as of 2018, it is the second most productive economic area of Vietnam, after Ho Chi Minh City.
The city is a settlement along the banks of the Red River. In 257 B.C, under the rule of king An Dương Vương, the citadel of Cổ Loa, nowaday Đông Anh district of Hanoi, was constructed and served as the capital of Âu Lạc. After the fall of Âu Lạc, the city was renamed to Tống Bình and ultimately Đại La. In 1010, emperor Lý Thái Tổ moved the capital to Đại La, renaming it Thăng Long (literally "Ascending Dragon"). Thăng Long would remain the political and cultural centre of the state of Đại Việt until 1802, when the Nguyễn dynasty, the last imperial dynasty of Vietnam, moved the capital to Huế.
|State||Abu Dhabi Emirate|
|United Arab Emirates|
Abu Dhabi (UK:, US:; Arabic: أَبُو ظَبْيٍ Abū Ẓaby Arabic pronunciation: [ɐˈbuˈðˤɑbi]) is the capital and the second-most populous city of the United Arab Emirates (later Dubai). The city of Abu Dhabi is located on an island in the Persian Gulf, off the Central West Coast. The Majority of the city and the Emirate live on the mainland connected to the rest of the country. As of 2020, Abu Dhabi's urban area had an estimated population of 1.48 million, out of 2.9 million in the emirate of Abu Dhabi, as of 2016. Abu Dhabi homes local and national government offices and is the home of the United Arab Emirates Government and the Supreme Petroleum Council.