Orlando is a city in Florida's U.S. state and known as Orange County's seat. Orlando had an estimated population of 2,85,713 as of the year 2018, making it the 71st largest city in the United States, the fourth largest city in Florida, and the largest inland city in the country. Orlando, Florida, is perhaps best known for Disney World and Universal, but it is also known for much more. Downtown Orlando is the central city of Central Florida. It includes iconic skyscrapers, entertainment centers, theaters, art galleries, shopping malls, and parks. There are more than 100 lakes in Florida. Lake Eola is a giant sinkhole in downtown Orlando and at its deepest point, is 80 feet. Orlando was once the main center of the citrus industry in Florida.