Mexico City is the capital of the country of mexico. Mexico is one of the oldest cities in North America. It is also one of the world's largest city. Mexico city is the center of mexico's economy and a major center of culture and education. Mountains surround Mexico city which sits on the bottom of an ancient Dried up lake. The city lies about 7,350 feet (2,240 meters) above sea level. The state of mexico is located in the central part of the country of the same name. mexico city is next to mexico and the city's metropolitan area extends into the southern part of the state. This helps give mexico the largest population of any Mexican state by far.