A photo taken in Shenyang, Northeast China’s Liaoning province on Feb 21 shows a parking lot on the roof of a shopping mall at Dongzhong Street. The facility was recently opened to ease the parking pressures on Dongzhong Street, which is one of the most popular commercial streets in the city. The parking lot can accommodate up to 400 cars free of charge. [Photo/Chinanews.com]

Cars drive up to the roof of a shopping mall at Dongzhong Street in Shenyang on Feb 21.[Photo/Chinanews.com]

A view of a parking lot on the roof of a shopping mall at Dongzhong Street in Shenyang, Northeast China’s Liaoning province on Feb 21.[Photo/Chinanews.com]