Tourists view a huge banyan tree with curtain-like aerial roots down into earth in Tongbiguan nature reserve in Yingjiang County, southwest China's Yunnan Province, March 4, 2017. The tree, with a history of nearly 500 years, is notable for its over 400 aerial roots stretching from the branches to hang in the air, among which more than 100 roots have reached the ground and thickened to form new tree trunks. The crown of the tree covers 8,200 square meters. (Xinhua/Lin Yiguang)
