Introduction to the Artifact Hall of the Ancestral Temple: This hall is located on the second floor and collects 10 typical artifacts (groups) of Sanxingdui cultural relics that are quite mysterious. These artifacts are unique in shape, well-made, and have rich connotations. Most of them were permanent heavy tools in the ancestral temple at that time. They were used to worship the heaven and earth, pay homage to the gods, channel spirits and suppress evil, etc. Because the heavy tools in the ancestral temple are not visible to anyone, they are called The "secret treasure".