On the top of the mountain to the west of Pulan County, there is a ruin of the castle, the ruins of the Pulan Dynasty, it is said to be the site of the Pulan Dynasty, because it is close to the Peacock River, known as the Pulan Peacock Dynasty site. The history books record that was finally destroyed by the Guge Dynasty. Standing on the site, the view is very wide, overlooking the county town of Pulan, with a panoramic view, there is a trend of kings coming to the world, surrounded by snow-capped mountains, extremely spectacular.