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.
Siyang is located in Subei Plain, one of the "Ten New Tianfu" in China, belongs to the Yangtze River Delta region, is the Huaihai Economic Circle, the Yangtze River Delta Economic Circle and the cross radiation area along the canal town axis. Siyang faces the hometown of Zhou Enlai Huai'an to the east, Suqian the hometown of King Xiang to the west, Shuyang, the hometown of flowers and plants to the north, and Hongze Lake to the south, facing Sihong, Hongze and Xuyi across the lake. The Siyang section of the Grand Canal of China (the Beijing-Hangzhou Grand Canal and the ancient Yellow River heritage site) is on the World Heritage list. It has the reputation of "plain, forest and sea, Xanadu". Siyang has a history of more than 5000 years of civilization and more than 2000 years of history of establishing a county, where the north and south cultures are integrated. Siyang was once the capital of Sishui in the Western Han Dynasty more than two thousand years ago. It has been established at the county level in 2233 years, and it was crowned twice in the Western Han Dynasty, which was called "Surabaya" in history, which lasted for 134 years. Siyang is China.