Shadow wall

As the saying goes, "three stones are placed in front of the door, eat and drink without worrying about the prosperity of the family", do you know which three stones?
colloquialism Stone dare to dang Stone Lion Shadow wall
04-18
The Forbidden City was shocked by the big secret, and the Nine Dragon Wall built by Qianlong was secretly manipulated
Kowloon Wall imperial palace Qianlong Shadow wall Ningshou Palace glass
03-04
The shadow wall in the house of Datong Ancient City
Datong Ancient City Shadow wall Illuminate the wall Datong
01-03
Qianlong did not find out, and it was two hundred years later that this secret on the Nine Dragon Wall was discovered
Kowloon Wall Qianlong glass Ningshou Palace Shadow wall White Dragon
12-25