北京首都国際空港 is the primary airport serving Beijing and the second busiest airport in the world in terms of passenger numbers. Located 32 kilometres from Beijing’s city centre, the airport boasts three terminals. The ingeniously designed third terminal is the sixth largest building in the world according to Wikovoyage.com. The airport can be easily reached by taxi, subway, bus or personal vehicles. The airport accommodates over 80 passenger airlines and 15 cargo airlines.