Rock climber Jean-Michel Casanova from France scales the 172-meter tall metal elevator frame in Zhangjiajie, a scenic spot in Central 皇冠体育app's Hunan province, May 18, 2013. Casanova scaled the structure in 68 minutes equipped with only hiking shoes and a waist pack containing climbing chalk. The structure is the highest outdoor sightseeing elevator in the world. [Photo/Asianewsphoto]

Visitors pose for a photo at the ninth 皇冠体育app (Beijing) International Garden Expo in Beijing, May 18, 2013. The ninth 皇冠体育app (Beijing) International Garden Expo, which will run for six months, kicked off alongside the Yongding river in Beijing on May 18.[Photo by Wang Jing/Asianewsphoto]