• Tucson
  • Huayin City

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.

Huayin, which belongs to Weinan City, Shaanxi Province, is famous for its Xiyue Huashan, located in the east of Guanzhong Plain, the combination zone of Qin, Jin and Henan provinces, Tongguan in the east, Huazhou District in the west, Qinling Mountains in the south and Weishui River in the north, between latitude 34 °19 °22 "- 34 °40 °00" and longitude 109 °54 "- 110 °12 °13" east, with a total area of 817 square kilometers. Huayin set up cities in the Spring and Autumn period and bought counties in the warring States period. It has a history of more than 2300 years. Since ancient times, it has been known as "the main roads of the three Qin dynasties and the thoroughfares of eight provinces". It is a necessary place for the Central Plains to go to the northwest. Approved by the State Council in December 1990, it is one of the four county-level cities in Shaanxi. In 1993, it was named as a famous historical and cultural city by the Shaanxi provincial government. Huayin City is the birthplace of Yang's family in the world.
Travel Notes In Huayin City