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.
Changyi District, which belongs to Xi'an City, Shaanxi Province, formerly known as Huan County and Huxian County, is located in the southwest of Xi'an, Qinling Mountains in the south and Weihe River in the north, with a total area of 1282 square kilometers. It is one of the three deputy central cities of Xi'an international metropolis, 18 kilometers away from the main city of Xi'an, and is located in Xi'an "half-hour economic circle". As of March 2019, Changyi District has jurisdiction over 8 streets, 6 established towns and a scenic spot management bureau. On November 24, 2016, the State Council approved the revocation of Huxian County and established Xi'an City's Fengyi District. On September 9, 2017, Qianyi District was officially unveiled as the 11th district of Xi'an. It is the hometown of modern Chinese folk painting, Chinese poetry, national civilized county, national health county and national go. 2018, Changyi District