Frankfurt Airport is Germany's busiest international airport by passenger numbers, located in Frankfurt, Germany's fifth-largest city. Its official name according to the German Aeronautical Information Publication is Frankfurt Main Airport. The airport is operated by Fraport and serves as the main hub for Lufthansa, including Lufthansa City Airlines, Lufthansa CityLine, Discover Airlines and Lufthansa Cargo as well as Condor and AeroLogic. It covers an area of 2,300 hectares of land and features three passenger terminals with capacity for approximately 65 million passengers per year; four runways; and extensive logistics and maintenance facilities.