Colorado Springs is a home rule municipality in, and the county seat of, El Paso County, Colorado, United States. It is the largest city in El Paso County, with a population of 478,961 at the 2020 United States Census, a 15.02% increase since 2010. Colorado Springs is the second-most populous city and the most extensive city in the state of Colorado, and the 40th-most populous city in the United States. It is the principal city of the Colorado Springs metropolitan area and the second-most prominent city of the Front Range Urban Corridor. It is located in east-central Colorado, on Fountain Creek, 70 miles (113 km) south of Denver.
Xianyang, a prefecture-level city in Shaanxi Province, is the capital of China's first feudal dynasty "Qin Empire". It is located in the hinterland of Qinchuan, eight hundred miles in Shaanxi Province. Xianyang is the origin of China, bordering the provincial capital Xi'an in the east, Yangling Agricultural High-tech Industry demonstration Zone in the west and Gansu in the northwest. It has jurisdiction over 2 districts, 2 cities and 9 counties, with a total area of 10189.4 square kilometers (644.56 square kilometers of its Western and Western New District is entrusted by Xi'an, not including Yangling District). At the end of 2017, the city's resident population was 4.376 million, and the population of the central urban area was 915000, ranking third in Shaanxi Province, second only to Xi'an and Baoji. Xianyang is China's first-class open city, a national historical and cultural city, a national model city with double support, and national health.