Frankfurt Airport is a major international airport located in Frankfurt, the fifth-largest city of Germany and one of the world's leading financial centres. It is operated by Fraport and serves as the main hub for Lufthansa including Lufthansa CityLine and Lufthansa Cargo as well as Condor and AeroLogic. The airport covers an area of 2,000 hectares (4,942 acres) of land and features two passenger terminals with a capacity of approximately 65 million passengers per year, four runways and extensive logistics and maintenance facilities.
Frankfurt Airport is by far the busiest airport by passenger traffic in Germany as well as the 4th busiest in Europe after London Heathrow Airport, Paris-Charles de Gaulle Airport and İstanbul Atatürk Airport. Wikipedia
10. Frankfurt airport-Germany