Photo taken on Aug 7, 2015 shows a helicopter of Astro Air sitting parked on the top of an office building in downtown Shenzhen, South China's Guangdong province. Astro Air Co Ltd launched helicopter tours over a scenic part of the city, while saying it also plans to start an intercity "flying taxi" service. The tour over Nanshan district offers tourists a 25-minute ride for 2,598 yuan ($418.78) per person. [Photo/Xinhua]
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