Less than one year later, Shan decided to set himself the monumental challenge of climbing 50 of China's most popular ... After climbing the 999 steps of Tianmen Mountain in Hunan, the adventurer ...
on Tainmen Mountain, China. The challenge consisted of climbing 999 steps at a 45 degrees angle. It began at the bottom of the Tianmen Mountain Road, which has a stairway and 99 dizzying turns.