Four-year-old boy Zhang Jiabo roller skates on a cliff road in Jincheng City, North China’s Shanxi Province, April 20, 2016. To mark Earth Day, the boy, along with his father and ten other roller skating fans rolled along 7.5 kilometers of a cliff road, which was built by locals on a steep mountain over 30 years and is known as the most dangerous road in the province. In a previous occasion, Zhang and his father also roller skated an average 30 kilometers a day for 14 days, travelling Henan Province to arrive at Beijing. (Photo: China News Service/Li Na)
