Maxing out at just under 5,000 feet elevation, the Tianmen mountain ... largest in China, is Hainan Island in the south, where surfing is a big draw. And when sun and surf time is over, don ...

The impressive video of American Jeb Corliss flying through the Tianmen Hole in China. While it's true that we've posted a fair few flying videos of late, we simply couldn't resist highlighting this ...

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.