What are the unsolved mysteries of the Forbidden City?

The Forbidden City in Beijing is the imperial palace of China in Ming and Qing Dynasties, formerly known as the Forbidden City. It is located in the center of Beijing's central axis and is the essence of ancient court architecture in China. It is one of the largest and best-preserved ancient wooden buildings in the world. As an ancient building with a history of 600 years, there are inevitably some unsolved mysteries.

1. Shishi, a special stone lion located in Duan Hongqiao, why is it special? Its expression looks very painful, and in ancient times, the lion's posture did not conform to the etiquette norms, and it should not appear in a place like the Forbidden City, which really violated the ancient feudal etiquette. The legend about it originated from the fact that Daoguang was the next emperor to train his eldest son, but his eldest son failed to live up to expectations, made no progress, and even had conflicts with his teachers. Daoguang was very angry and kicked his eldest son, and his eldest son died a few days later. Every time I pass the Broken Hongqiao, I think of my eldest son when I see this stone lion. Later, it was rumored in the palace that Shishi was the reincarnation of his eldest son. Of course, this is also a legend.

Second, the arrow on the Forbidden City plaque, the Forbidden City plaque should be a sacred symbol, but there is an arrow on it, which has existed for more than 200 years and has not been removed. Some people say that it is to protect the heritage, but this is only a modern saying. Why didn't the palace take off the arrow when it first existed? The reason is unknown.

As we all know, the construction of the Forbidden City was all carefully built by skilled craftsmen. The building is perfect and grand, and the materials are also very sophisticated. The dragon wall is made of stained glass, but if you look closely, you will find that the dragon belly is made of wood. It makes sense that wood is not as durable and fragile as colored glass, and it does not meet the requirements of royal production. Why use wood instead? It is still an unsolved mystery.

The above is the mystery of the Forbidden City that people have never explained.