
Hong Kong Observation Wheel is seen in Central in Hong Kong, south China, April 13, 2015. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Li Peng)

Hong Kong Observation Wheel is seen in Central in Hong Kong, south China, April 13, 2015. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Li Peng)