Introduction to the ancestral mausoleum: Qingyong Tomb is the ancestral mausoleum of the Qing Dynasty. In the mausoleum, Nurhaci’s sixth ancestor, great-grandfather, grandfather, father and his uncles and uncles are buried. It ranks first among the three mausoleums outside Guanhai. It is also the largest and most complete ancient imperial mausoleum complex in my country.