What are the "mysteries" of various buildings in the Forbidden City?

1. The warbler does not fall on the wall.

? Outside the Forbidden City, there is a red wall with a height of 9.9 meters, a bottom thickness of 8.6 meters and a top thickness of 6.66 meters. In order to prevent birds from landing on the top of the city wall and then leaving bird droppings on the top of the city wall, clever craftsmen built warblers on the city wall. There are two secrets to prevent birds from landing on the top of the wall: first, the slope of the top of the wall is not suitable for birds to stand on, and the second ridge of the wall must be repaired to be larger than the distance between the toes of birds, so that birds can't catch the ridge of the wall and won't land on the red wall of the Forbidden City.

There is a copper lion hanging in front of the door with drooping ears.

In the Qing dynasty, in order to prevent the harem in the palace from interfering in politics, two bronze lions stood in front of the Qing dynasty. Generally, the ears of lions are upright, because the lions with upright ears look full of energy, but the ears of these two bronze lions are drooping, apparently to warn the harem in the palace, and it is best to listen less and ignore the affairs of the Qing Dynasty.

3. Emperor Qianlong's 25-square imperial seal

In the imagination of ordinary people, Emperor Qianlong has only one decree, whether it is an imperial decree or an imperial decree, as long as? Mao? Bang, the seal is covered, which means that the imperial edict and imperial edict can be officially promulgated all over the world. It's not the same thing. Emperor Qianlong had 25 jade seals, each with a different function. For example: the treasure of the order, the treasure of the son of heaven, the treasure of respect for relatives, the treasure of Guang Yun and so on. Together, all the functions of these 25 jade seals can enable Gan Long to exercise all the powers entrusted to him by the imperial power. There is another interesting thing about the decree, that is, before the emperor left, the decree came first, that is to say, once Gan Long went out, the first one to leave was not Gan Long's escort, but the team that escorted the decree, and Gan Long still arrived at his destination, and the decree was already waiting for him in front.