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.
Lingwu, known as Lingzhou in ancient times. Ningxia Hui Autonomous region has jurisdiction over county-level cities, which is the core area of industrial development in Ningxia Hui Autonomous region and Yinchuan City. Lingwu is known as "south of the Yangtze River" and has a long history of civilization. as early as the late Paleolithic Age more than 30,000 years ago, human beings thrived in the magical land of Lingwu, which is one of the birthplaces of the ancient civilization of the Chinese nation. It has been more than 2200 years since Lingwu bought the county in the fourth year of Emperor Huidi of the Western Han Dynasty (191 BC). Lingwu is rich in tourism resources and many places of interest. The famous Shuidonggou is the earliest Paleolithic human cultural site found in China, and is known as "the birthplace of Chinese prehistoric archaeology". The Lingwu dinosaur fossil site 160 million years ago is a large area, concentrated distribution, well-preserved and surrounding environment in China.