While it's true that we've posted a fair few flying videos of late, we simply couldn't resist highlighting this one: Jeb Corliss wingsuit flying through the enormous Tianmen Cave in China's Hunan ...

With 3.7 million square miles of land, China ... Kunlun Mountains, the Tianshan Mountains, and the Qinling Mountains. But there is a lesser-known and very unique range called the Tianmen, in ...

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.