Criterion (iv): The palaces, ancestral shrines and the royal tombs of Yin Xu are outstanding examples of early Chinese architecture. Through years of scientific archaeological excavation and conservation work in Yin Xu, the excavated sites and unearthed historical relics have been protected properly from both natural and human threats and damage and the maximal historical information of Yin Xu preserved. To better conserve the excavated cultural relics, the Yin Xu Garden-Museum and Museum-Exhibition Hall have been built in the Yin Xu Palace and Ancestral Shrine area, so that the important cultural relics could receive the best care in a museum environment. The Master Plan for the Conservation of Yin Xu has been drawn up and the management system and regulations for the protection of cultural relics have been improved constantly to enhance the protection of Yin Xu. The original style and features of Yin Xu have basically been conserved; and the Site of Yin Xu and its historical relics have been well preserved.