Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
Wenchang, known as Zibei in ancient times, has a history of more than 2100 years since the Western Han Dynasty. It is one of the three historical ancient cities in Hainan. It is a famous hometown of overseas Chinese in China and one of the important base areas of the Qiongya Revolution. The birthplace of Minnan culture in Hainan, the location of Hainan Wenchang Space launch Center, is the fourth space city in China. It is located in the integrated economic circle of "one hour Economic Circle" and "Haicheng text" in Qiongbei Comprehensive Economic Zone. Qiongbei is one of the important regional centers of economy, culture, transportation, science and technology and tourism. Wenchang, Haikou and Sanya have been selected as "charming cities with Chinese characteristics" by global organizations. they are national demonstration cities for scientific and technological progress, national advanced cities for scientific and technological progress, and advanced cities for national culture. The city with 278.5 kilometers of coastline is the longest in Hainan, and Qinglan Port in the city is open to the outside world at the national level.