Orlando is a city in the U.S. state of Florida and the county seat of Orange County. Located in Central Florida, it is the center of the Orlando metropolitan area, which had a population of 2,387,138, according to U.S. Census Bureau figures released in March 2016. These figures make it the 24th-largest metropolitan area in the United States, the sixth-largest metropolitan area in the Southern United States, and the third-largest metropolitan area in Florida. As of 2015, Orlando had an estimated city-proper population of 270,934, making it the 73rd-largest city in the United States, the fourth-largest city in Florida, and the state's largest inland city. The City of Orlando is nicknamed "The City Beautiful", and its symbol is the fountain at Lake Eola. Orlando is also known as "The Theme Park Capital of the World" and in 2016 its tourist attractions and events drew more than 68 million visitors. The Orlando International Airport (MCO) is the thirteenth-busiest airport in the United States and the 29th-busiest in the world.