Mountain bike challenge in Zhangjiajie, up 999 steps to the destination (1/3)

Geng Jie, a biker rides up a 999-step stairway on his Motorcycle in Tianmen Mountain, Zhangjiajie, Central China's Hunan province. Geng finishes the challenge in only 56 seconds. (Photo: China News Service/ Wu Guangming)

Geng Jie, a biker rides up a 999-step stairway on his Motorcycle in Tianmen Mountain, Zhangjiajie, Central China's Hunan province. Geng finishes the challenge in only 56 seconds. (Photo: China News Service/ Wu Guangming)

Geng Jie, a biker rides up a 999-step stairway on his Motorcycle in Tianmen Mountain, Zhangjiajie, Central China's Hunan province. Geng finishes the challenge in only 56 seconds. (Photo: China News Service/ Wu Guangming)