
Tourists take the peak tram for the Peak in Hong Kong, south China, April 30, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Li Peng)

Tourists take the peak tram for the Peak in Hong Kong, south China, April 30, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Li Peng)