• Tucson
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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.

Gujiao City is a county-level city hosted by Taiyuan City, Shanxi Province, located in the northwest of Taiyuan City, Shanxi Province. It is not only the national coking coal production base, but also the transportation hub and commodity distribution center at the eastern foot of Luliang Mountain, connecting the provincial capital Taiyuan and the modern industrial and mining cities in the northwest of Shanxi Province. Gujiao City is located between latitude 37 °40 "6" to 38 °8 "N, longitude 111 °43" 8 "to 112 °21 °5" east, 50 km from east to west and 53 km from north to south. It is located in the west of Taiyuan Basin, the east wing of Guandi Mountain, the main peak of Luliang Mountains, the southern end of Yunzhong Mountain, Wanbailin District of Taiyuan City in the east, Loufan County in the west, Jiaocheng County and Qingxu County in the south, Yangqu County and Jingle County in the north, and Jingle County in the north, with a land area of 1542.59 square kilometers. As of 2018, Gujiao had jurisdiction over 4 streets, 3 towns and 7
Airport In Gujiao - Taiyuan Wusu International Airport
Taiyuan Wusu International Airport (Taiyuan Wusu International Airport, IATA: TYN, ICAO: ZBYN), referred to as "Taiyuan Airport", is located at the junction of Xiaodian District (main body) of Taiyuan City, Shanxi Province, China and Yuci District of Jinzhong City, from Taiyuan It is 9 kilometers away from the South Central Ring Road and only 4.6 kilometers away from Taiyuan South Railway Station. It is a 4E-level civil airport and a regional hub airport.   , member of North China Airport Group   .
As of November 2017, Taiyuan Wusu International Airport has 2 terminals (Terminal 1 covers an area of ​​25,800 square meters, and Terminal 2 covers an area of ​​55,000 square meters), with 1 runway and 43 seats; There are 130 passenger routes and 72 cities (including 120 domestic routes and 61 cities; 3 regional routes and 3 regional cities; 8 international routes and 8 international cities), and 1 cargo route.  
In 2018, the passenger throughput of Taiyuan Wusu International Airport was 13.5884 million, a year-on-year increase of 9.6%, ranking 29th in China.
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