A visitor walks across the skybridge built 30 meters in the air and held together by tying the bridge between "umbrella trees" in the forest of southwest China's Yunnan province on February 21, 2009. These trees are shaped like big umbrellas, the tallest of which soar over 80 meters in the sky. The are the tallest species of trees currently in Asia. The 500-meter long skybrige has drawn tourists from all walks of life to enjoy "a walk in the air". [Photo: Xinhuanet]