Urban areaAn urban area, built-up area or urban agglomeration is a human settlement with a high population-density and an infrastructure of built environment. This is the core of a metropolitan statistical area in the United States, if it contains a population of more than 50,000. Urban areas originate through urbanization, and researchers categorize them as cities, towns, conurbations or suburbs. In urbanism, the term "urban area" contrasts to rural areas such as villages and hamlets; in urban sociology or urban anthropology it contrasts with natural environment.
DüsseldorfDüsseldorf (ˈdʊsəldɔːrf , USˈdjuːs- ; ˈdʏsl̩dɔʁf; often in English sources; Low Franconian and Ripuarian: Düsseldörp ˈdɵsəldœʀ(ə)p; archaic Dusseldorp ˈdʏsəlˌdɔr(ə)p) is the capital city of North Rhine-Westphalia, the most populous state of Germany. It is the second-largest city in the state after Cologne, and the sixth-largest city in Germany, with a population of 653,253. Düsseldorf is located at the mouth of the Düssel into the Rhine.
Frankfurt AirportFrankfurt Airport (; Flughafen Frankfurt Main ˈfluːkhaːfn̩ ˈfʁaŋkfʊʁt ˈmaɪn, also known as Rhein-Main-Flughafen) is Germany's main international airport by passenger numbers and is 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.
RyanairRyanair () is an Irish ultra low-cost carrier founded in 1984. It is headquartered in Swords, Dublin, Ireland, and has its primary operational bases at Dublin and London Stansted airports. It forms the largest part of the Ryanair Holdings family of airlines and has Ryanair UK, Buzz, Lauda Europe, and Malta Air as sister airlines. It is Ireland's biggest airline and in 2016 became the world's largest airline by scheduled international passengers. Ryanair Group operates more than 500 planes.