Atlanta's Hartsfield-Jackson International Airport is one of the busiest airports in the world and handles more than 63 million passengers each year. The airport is also home to the world's largest single-runway, which can handle planes as large as the Airbus A380. Atlanta's airport has been in operation since 1941 and has seen many updates and improvements over the years. These include a new terminal complex that was completed and a new air traffic control tower that was completed in 1924. The airport is also home to two runways that are each 7,000 feet long.