Introduction to the housekeeper's room: On the left side of the governor's bedroom, there is a house with a split-level design, which is the residence of the housekeeper. Because Germans have a strong sense of hierarchy and believe that servants cannot live on the same level as the master, the housekeeper's room is sunken to the ground to show her humble status. Therefore, it is better shaded. Lin Biao, who suffered from glaucoma in 1963, lived here.