The Tomb of Princess Yongtai is the Qianling Museum. It is one of the many accompanying tombs of the Qianling Tomb of Wu Zetian. The owner of the tomb is Wu Zetian's granddaughter, who died at the age of 17. Mausoleum consists of tomb passage, cave, patio, tomb chamber and so on. The tomb was once stolen, and now the burglary cave can be seen on the tomb path. The most wonderful part of the tomb is the murals of the tomb, especially the "Gong Nv Tu" on the east wall of the former tomb. According to the tour guide, it is known as "the first beauty in ancient China". The graveway is a slope about 2 meters wide. It goes through the cave until it reaches the narrow rainway. There are six niches in the cave walls on both sides. There are painted terracotta figures, terracotta figures, tricolor horses and pottery utensils with funerary objects. They are lifelike in shape and exquisite in craftsmanship. From the tomb path to the tomb chamber, there are rich and colorful murals, royal guards of honor, as well as celestial maps, palace maps and so on. Especially in the tomb of a stone, stone wall line engraved with 15 pictures of official women figure painting.