The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Dunhuang, hosted by Jiuquan City, Gansu Province, is located at the westernmost end of the Hexi Corridor and at the confluence of Gansu, Qinghai and Xinjiang provinces (regions). It is located between 92 °13 degrees east longitude and 95 °30 degrees east longitude, 39 °40 degrees north latitude and 41 °40 degrees north latitude, with a total area of 31200 square kilometers. Dunhuang is a node city of the Silk Road, famous for its "Dunhuang Grottoes" and "Dunhuang murals". It is the site of the World Heritage Mogao Grottoes and Yumengguan and Yangguan on the border of the Han Great Wall. In 2012, it was selected as one of the "Top 200 cities with Chinese characteristics" and is a famous historical and cultural city in China. In 2018, Dunhuang had nine towns, one farm and one base under its jurisdiction, with a total resident population of 191100 and a GDP of 98.78.