What treasures are hidden in the ancient underwater city of Zhou Jun, and why have the secrets of the ancient underwater city of Zhou Jun not been solved?

China has a vast territory, which is not only rich in products, but also rich in historical sites, among which there are not a few that have not been excavated. Some famous ones, such as the Terracotta Warriors and Horses in the Mausoleum of the First Qin Dynasty, can't be developed because of the destruction of historical sites, and some, such as the ancient city of Zhou Jun, are difficult to be developed underwater, and the existing technology can't meet the requirements. At present, all the ancient cities in Zhou Jun are underwater, and the specific area cannot be accurately determined, among which there are countless historical sites.

The ancient city of Zhou Jun was built during the Warring States Period, and some buildings in the city can still be seen through the water. It is said that there is also a very famous palace in the city-Jingle Palace. According to legend, the design is similar to the Forbidden City, but smaller and more exquisite. The ancient city was not flooded at first, but was also considered to be preserved during the construction of Danjiangkou Reservoir. However, due to the technical and social background at that time, the ancient city was finally submerged. Because it is an ancient city, it contains a lot of ancient cultural relics.

Archaeologists have done a lot of cultural relics protection work within their power. However, a large number of buildings including Jingle Palace were not protected in time, and due to the social background at that time, the ancient city was flooded, leaving a lot of regrets. At present, it is more accurate to say that there is a tomb of Geng, the son of Chu Zhuangwang, in the ancient city. Historical records show that its tomb specifications are very high, which is rare in princes' tombs, especially in ancient princes' tombs.

Another treasure is the Jingle Palace mentioned earlier. Although it was burned twice, it was rebuilt in time. After the reconstruction, there are more than 500 buildings in the palace, such as halls, pavilions and Taoist temples, which are rare examples of ancient imperial palaces. The purpose of this palace is to serve as the palace where the emperor lived when he traveled. The design is similar to that of the Forbidden City. According to records, there are countless cultural relics in the palace. Although some of them were rescued before being submerged, many of them were still underwater.