ASIA: Beijing Daxing International Airport (PKX), also known as Beijing New Airport, is the world's largest. The mega-airport hub is capable to handle up to 45 million passengers per year by 2021 and capacity of 100 million in the future.

Daxing airport is located on the border between Beijing and Langfang, Hebei Province, with a 46km-distance from Tiananmen Square, a 67km-distance from Beijing International Airport, and a 26km-distance from Langfang City Center. The airport is now serving the needs of the cities of Beijing, Tianjin, and Hebei.

The US$11.4 billion facility, which took nearly five years to build, features a 700,000 square meter terminal, the world's largest single-building airport terminal, and sits on 47 square kilometers of land. Airports Council International named the airport the best in Asia-Pacific for hygiene measures in 2020.

The airport's construction began on December 26, 2014, under the direction of chief engineer Guo Yanchi. By March 2017, the terminal's concrete structure had been capped. The first flight inspection began on January 23, 2019, and was expected to be completed in March.

On June 30, 2019, the airport's construction was officially completed, and it was preparing for its September opening. The airport itself cost approximately US$17 billion, with other projects in the surrounding area costing an additional $46.2 billion, for a total cost of US$63 billion.