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.
Baoding, known in ancient times as Shanggu, Baozhou, Zaocheng and Baofu, is located in the middle of Hebei Province and at the eastern foot of the Taihang Mountains. It is one of the central cities in Beijing-Tianjin-Hebei region and a part of China (Hebei) Free Trade Experimental Zone. It is known as "three passes controlled in the north, nine provinces in the south, and an important place in Gifu." it's called Nanpinghan. Today, the name of Baoding means "defend the capital and stabilize the world". Baoding has always been the "capital capital" and the "south gate of the capital". In the Qing Dynasty, Baoding was the capital of Zhili Province and the resident of the governor of Zhili Province. for nearly 300 years from 1669 to 1968, Baoding was the political, economic, cultural and military center of Hebei and the regional political center of China. After the founding of New China, it has also been the provincial capital of Hebei Province twice. Baoding is also the legendary hometown of Emperor Yao, with a history of more than 3000 years. It is the kingdom of Yan and Zhongshan in history.