Countdown to Beijing's new airport continues(1/12)

A billboard shows a 57-day countdown to the opening of Beijing Daxing International Airport on Aug 5 in the Daxing district of Beijing. The new airport will begin operations on Sept. 30 and has started selling tickets. (Photo/chinadaily.com.cn)

A photo taken on Aug. 5 shows the No 4 gate to the single terminal of the Beijing Daxing International Airport, the largest of its kind, for international departures and regional departures (Hong Kong/Macao/Taiwan), in the Daxing district of Beijing. (Photo/chinadaily.com.cn)

The shopping area inside the terminal hall of the Beijing Daxing International Airport. (Photo/chinadaily.com.cn)

Vehicles line up outside the terminal of the Beijing Daxing International Airport in the Daxing district of Beijing on Aug 5, 2019. (Photo/chinadaily.com.cn)

A Chinese national flag hangs on the ceiling at the center of the Beijing Daxing International Airport. (Photo/chinadaily.com.cn)

The Beijing Daxing International Airport terminal hall. (Photo/chinadaily.com.cn)

The spacious terminal hall of the Beijing Daxing International Airport. (Photo/chinadaily.com.cn)

A direction board inside the terminal hall of the Beijing Daxing International Airport. (Photo/chinadaily.com.cn)

Self-service check-in machines installed on the second-floor underground of the terminal of the Beijing Daxing International Airport which connects with the subway and railway. (Photo/chinadaily.com.cn)

Staff members monitor the new subway line on a test run to Beijing Daxing International Airport on the second floor underground of the terminal hall. (Photo/chinadaily.com.cn)

The subway train on the new metro line to Beijing Daxing International Airport stops at the second floor underground of the terminal hall. (Photo/chinadaily.com.cn)

Elevators and escalators inside the seven-story terminal hall of the Beijing Daxing International Airport. (Photo/chinadaily.com.cn)