The Mausoleum of the First Qin Emperor is undoubtedly the most mysterious of all the mausoleums. Qin Shi Huang's underground palace is as big as seventy-eight underground palaces, and there are many treasures and organs inside, but so far no one has found it. Now, more than two thousand years later, even the body of Qin Shi Huang has not been found.
Sima Qian had the earliest record of Qin Shi Huang's mausoleum in the "History": In the mausoleum of Qin Shi Huang, there are many treasures, but there are also many dangerous organs. It was not until 1962, when archaeological experts conducted a comprehensive investigation of the mausoleum of Qin Shi Huang, that they learned how big Qin Shi Huang's underground palace really was. The total area is 56.25 square kilometers, almost 78 times the size of the Forbidden City, which caused an uproar in the archaeological world. And the weirdest are the unsolved mysteries.
Qin Shi Huang's underground palace is the largest underground palace during the Qin and Han dynasties, and its depth has been impossible to speculate. The underground palace has been measured using high technology and deduced a depth of about 500 to 1500 meters, but this conclusion does not fit the overall layout, and how deep the real underground palace is, there are still many opinions, and further research is needed to draw conclusions.
As for why there was mercury in Qin Shi Huang's underground palace, other experts wondered, and the use of mercury as a river and the sea is also relevant records in the Book of Han, but whether there is mercury in the tomb has always been a mystery. The watermark in the underground palace of Qin Shi Huang has four du, hundred rivers, and five mountains and nine states, and has a topography, so it resembles the appearance of a river and ocean.
As for whether the underground palace really exists, it is even more a mystery. Li Si, the designer of the mausoleum, once described it as "incombustible, burned, empty, and formless." If Li Si's statement is true, then this underground palace should have a layer of shell. According to documents, this underground palace should be hollow and have a huge space, but archaeological excavations have not carried out in-depth exploration of the main body of the palace, so whether this underground palace is true or false remains a mystery.
Moreover, in the underground palace of Qin Shi Huang, there is also a magical launching device hidden. If the book is true, then this should be the oldest anti-theft device in China. The dark crossbow placed in the underground palace is a set of self-firing crossbows, and if something touches the bow, it will automatically shoot. Why the Qin Dynasty, more than 2,200 years ago, was able to build such an advanced automatic transmitter is also a huge mystery.
And the most puzzling thing is the body of Qin Shi Huang. However, since Qin Shi Huang's body has not yet been found, no one can see what he looks like, and no one can determine how his body was preserved. After the death of Qin Shi Huang, nearly two months had passed since entering the soil, and with the level of science and technology of that era, it was impossible to preserve it intact.
These mysteries are just the tip of the iceberg of the many mysteries of the underground palace of the Qin Tomb, and further exploration is needed to figure out the mysteries.