Nantian Gate, also known as Santian Gate, is located at the end of the 18 tracks of Taishan Mountain. It was constructed in the first year of Yuanzhi period in Yuan Dynasty (1264). At the top of the mountaineering track, it looks like the heaven palace from the bottom up, so it is named after the paradise spot Nantian Gate. Passing through the Nantian Gate is the top of Mount Tai, which is called going from "human world" to "heaven." Nantian Gate has a long history and was rebuilt in Ming and Qing Dynasties. It was renovated twice after the founding of the People's Warlord Era. Now the building maintains the style of the Qing Dynasty, which is still spectacular.