Introduction to Nantianmen: Nantianmen is located on Taibai Peak of Baizhao Mountain. There are ninety-nine steps leading to the Nantianmen. Buddhist saying goes that ninety-nine steps lead to one. Nantianmen is the gate between heaven and earth. If you cross Nantianmen, you will reach the sky from the earth. According to legend, Li Bai ascended to heaven here.