In reality, the nine-story demon tower is near Qinghai. However, due to the long history of the tomb, it has not been fully developed for safety reasons, so it is not as well known as some historical sites such as the Terracotta Warriors and Horses. In addition, people's attention to archaeology is relatively low, and these less famous archaeological sites do not know about its existence.
In fact, the nine-story demon tower is a relatively grand cemetery in ancient times. The special feature is that other cemeteries have only one floor, and the nine-story demon tower has been extended to the ninth floor underground. Anyone who knows the common sense of life knows that the oxygen content in this underground closed cave is very low. The deeper it goes underground, the lower the oxygen content, and most bacteria are aerobic. In this oxygen-free or oxygen-poor place, the bacteria content is very low, which can keep people's bodies from being corroded for a long time. This reflects the wisdom of the ancients. Although they did not find and understand the existence of bacteria at that time, they have applied this knowledge very well. This is why the archaeological community has never excavated all the nine floors, because after thousands of years of development, no one can predict the situation inside, and it may cost a lot to dig them out.
In fact, everyone only needs to know that the nine-story demon tower is real, and there is no need to have a deep understanding of its internal structure or something deeper. With the development of science and technology, scientists can determine the internal conditions of the tomb and announce the truth and facts to the public.