The new mega-airport, the second in Beijing, was designed by the late architect Zaha Hadid in the shape of a starfish with five connected concourses. It is said to be the world’s largest single-building airport terminal. At 700,000 sq metres, with four runways, it is expected to be able to handle 72 million passengers a year by 2025. By 2040, the airport is expected to expand to eight runways and accommodate 100 million passengers a year. – The Guardian