Beijing Daxing International Airport

Beijing Daxing International Airport, located on the border of Beijing and Langfang, Hebei Province, is Beijing's second international airport. It has been nicknamed "the starfish". It was completed on June 30, 2019, and began operations on September 26, 2019.The airport is 46 kilometres south of Tiananmen Square, 26 kilometres west of downtown Langfang, 50 kilometres northeast of Xiong'an New Area, and 65 kilometres south of Beijing Capital International Airport, and serves Beijing, Tianjin and Hebei. It is a hub for SkyTeam alliance airlines and some Oneworld members, while most Star Alliance members have remained at Beijing Capital International, as has Hainan Airlines.After almost five years of construction, the CN¥ 80 billion facility features a 700,000 m2 terminal, the world's largest single-building airport terminal, and sits on 47 km2 of land.

Source: Wikipedia