What is the tallest building in Confucius?

Briefly introduce the patio building:

There are seven buildings in the back hall, with a front porch on the second floor, and three annex buildings with front porches on the east and west sides. The Houtang Building is the residence of Kong Decheng, the 77th generation grandson and duke of Confucius. Kong's wedding supplies were displayed in the hall, as well as calligraphy and paintings and gifts presented by friends at that time. The east inner room was the reception room at that time, equipped with Chinese and western furniture, and the inner room was the bedroom of Kong Decheng and his wife Sun Qifang. The photo frame on the east wall is inlaid with photos of Kong Decheng and their children. The two rooms on the west side of Houtang Building are the bedrooms of Mrs. Kong Decheng's wet nurse. The building in the courtyard was the place where needlework was done in the yamen, and the west building was the residence where relatives of domestic guests were entertained. There is also a building on the west side of the later Tang building, which is the Buddha building, where the Duke of Feast burns incense and worships Buddha. There are five main rooms behind the patio building, called Wu Hou, formerly known as Zaohuaixuan, which was originally the place where the Duke of Feast studied and became the residence of maids in the late Qing Dynasty.