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.
Fangchenggang is a prefecture-level city under the jurisdiction of Guangxi Zhuang Autonomous region, a city around the Beibu Gulf agglomeration, a coastal city, a border city and a port city, located at the southwestern end of the coastline of the Chinese mainland, back to the southwest, facing Southeast Asia, south to the Beibu Gulf, bordering Vietnam in the southwest, with a coastline of 580km and a land border of 100.895 km. It is the only ecological bay city with full sea view on the banks of the Beibu Gulf. Known as the "southwest gateway, border pearl", it is the oxygen capital of China, the hometown of Jinhua tea in China, the hometown of Chinese egret, the hometown of longevity in China, and the second largest hometown of overseas Chinese in Guangxi. Fangchenggang was built in March 1968 as the main port of departure of the concealed maritime transport route between Vietnam and the United States, which is known as the starting point of the "Ho Chi Minh Trail at Sea". Fangchenggang is a good deep-water port in China.