Zhao Lianzhong displays his collection of train paraphernalia in his home in Shijiazhuang city, the capital of North China's Hebei province, Aug 14, 2017. Over 30 years, Zhao, who once worked on the railways, has collected tens of thousands of train-themed items, including models, signal lamps, platform tickets, posters and railway timetables. His wide collection shows how China's railway system has developed over the decades. [Photo/China News Service]