Zhang Xixin climbs on a roller coaster at a theme park in Nanchang City, the capital of East China’s Jiangxi Province, April 24, 2016. Zhang, a cyberspace celebrity known for his climbing, overcame the sharp slopes and challenging twists using just his bare hands to reach the top of the roller coaster structure, 77 meters above ground, in about an hour. (Photo: China News Service/Liu Zhankun)