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.
Xianyang, a prefecture-level city in Shaanxi Province, is the capital of China's first feudal dynasty "Qin Empire". It is located in the hinterland of Qinchuan, eight hundred miles in Shaanxi Province. Xianyang is the origin of China, bordering the provincial capital Xi'an in the east, Yangling Agricultural High-tech Industry demonstration Zone in the west and Gansu in the northwest. It has jurisdiction over 2 districts, 2 cities and 9 counties, with a total area of 10189.4 square kilometers (644.56 square kilometers of its Western and Western New District is entrusted by Xi'an, not including Yangling District). At the end of 2017, the city's resident population was 4.376 million, and the population of the central urban area was 915000, ranking third in Shaanxi Province, second only to Xi'an and Baoji. Xianyang is China's first-class open city, a national historical and cultural city, a national model city with double support, and national health.