Introduction to the Prince Regent's Palace: The Prince Regent's Palace is located at No. 43, the northern edge of Houhai, Shichahai, east of Prince Chun's North Mansion. The building faces south and has two courtyards, east and west, with a construction area of ​​about 1,900 square meters. It is now the second largest building in Beijing. The school building for the deaf and mute is a cultural relic protection unit in Xicheng District.