The Ming Dongling Mausoleum is located in the south of the Zijin Mountain in Xuanwu District, Nanjing City. It is the mausoleum of Zhu Yuanxuan, the eldest son of Zhu Yuanxuan, the Ming Taizu Zhu Biao (Prince Yuanxuan, Emperor Mingxing Zongkang). The overall layout is similar to the Ming Xiaoling Mausoleum, but the scale is smaller. The Ming Dongling Mausoleum has the mausoleum, the mausoleum gate, the front door of the hall, the hall and the treasure top and other architectural elements, mainly buildings in a north-south axis distribution, the existing Ming Dongling front door base site, drainage facilities and the door hall platform base site and other sites. The front of the tomb is the front of the garden wall at the front of the tortoise back, and the pattern is special. It is the only plane layout form known in China.