It's one of the most famous palaces. The first 3 of them are the former three palaces: Taihe Temple,, Zhonghe Temple, Baohe Temple. The Taihe Temple is also called Jinluan Temple.
The Taihe Temple is the biggest and grandest building in the palace, standing on the south part at the platform toward the square. The temple itself is 26.92 meters high, together with the platform under it, it gets the highest point of the whole palace. The emperors used to hold big ceremonies here.