Visitors walk across the treetop corridor in Xishuangbanna, Yunnan province, Dec 10, 2016. The corridor, which is 36 meters long and 500 meters high, was built in 1990. It connects two towering trees and is dubbed as the world's highest and China's first treetop corridor.The innovative design has attracted numerous tourists to come and explore. The experience is so thrilling that you can have a full overview of the tropical forest landscape once you step into the corridor.[Photo by Li Ming/Asianewsphoto]