Looking Star Observatory (Fig. 1) is believed to be the earliest existing astronomical observation facility in Asia (the earliest Observatory and sundial are in Korea). There are some fascinating things on the internet. There are 30 stories, about 12 pieces on each floor, totaling 365 pieces, corresponding to 30 days, December 365 days. However, I saw the passage in Figure 2 in Qingzhou Museum. It is clear in English that the Prospecting Star Platform is composed of more than 360 stones on 31 floors, so the rumors are not broken.