• Tucson
  • Nansha District

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Nansha District, Guangzhou City District, Guangdong Province, is the deputy city center of Guangzhou, which is located at the southernmost end of Guangzhou, the west bank of the Humen waterway of the Pearl River, and the confluence of Xijiang, Beijiang and Dongjiang rivers. The region has a total area of 803 square kilometers and has jurisdiction over 3 streets and 6 towns. The District people's Government is stationed in Huangge Town. By the end of 2017, the resident population of Nansha District was 725000, of which 415400 were registered residents. Nansha District is located in the Pearl River Estuary and Guangdong-Hong Kong-Macau Greater Bay Area Geographic Geometry Center. It is the only passage to the sea in Guangzhou and an important pivotal node connecting the urban agglomeration on both sides of the Pearl River Estuary and Hong Kong and Macao. There are Nansha Port, the only deep-water wharf in the western Pearl River Delta, Zhongchuan Longxue Shipbuilding Base, one of the three major shipbuilding bases in China, and Guangzhou, the first bonded port area in Guangdong Province that has passed the national formal acceptance.
Airport In Nansha District - Guangzhou Baiyun International Airport
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