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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.

Xigaze, a prefecture-level city under the jurisdiction of the Tibet Autonomous region, is located in the southwest border of the people's Republic of China, southwest of the Qinghai-Tibet Plateau, Ali in the west, Naqu in the north, Lhasa and Shannan in the east, and borders with Nepal, Bhutan, India and other countries. In 2017, Xigaze has a population of 750000 and has jurisdiction over 1 municipal district and 17 counties. Dingri County in Xigaze City has the world's highest peak-Mount Qomolangma. Sangzhuzi Zong Castle and Jiangzi Castle are both former political and religious centers. There are a number of famous temples such as Tashilunbu Temple, Baiju Temple and Sakya Temple. There is.
Travel Sights In Rikaze、Shigatse
Travel Notes In Rikaze、Shigatse
Tibet is a place that lacks oxygen but does not lack faith (Shigatse Mount Everest Loop Tour)
Everyone who loves to travel has a Tibetan dream in his heart It is as unreachable as Mount Everest in many people's minds. But still many people
big beauty! Ali
The Ngari region of Tibet is located in the west of Tibet and the south of the Qinghai-Tibet Plateau (Qiangtang Plateau), with an area of ​​345,000 sq
Nine-day Mt. Everest Loop, Shigatse Five Counties Travel Guidebook
【Tibet. Dream】 what day is itwhich time is next timehow long is itto experienceto regretKeep loving and go to the mountains and seas~ here is tibetThi
The beauty of Tibet in the sky is as beautiful as walking
The great beauty of Tibet in the sky lies in the preface Early morning of December 16, 2019 longing to see rivers and mountains will be on a getaway M