Introduction to Cangqu Building: The third floor of Chen's fifth floor is called "Cangqu Building", which is located on the right back side of Cishu Building and means "retreat". After the Sino-French War in the 10th year of the reign of Emperor Guangxu of the Qing Dynasty (1884), Chen Baochen was demoted to five levels by the Ministry of Education. Since then, he has lived in the countryside for more than 20 years and built "Cangqu Tower" for his own entertainment. Cangqu Building is a civil structure, facing south, with two floors, five rooms in width and four rooms in depth. It has a single eaves on the top of the mountain. There are fish ponds, rockeries, pavilions and cloisters in front of the building. It is widely planted with flowers and trees, and the clear waves and green waves make it look like a tower. Exquisite and unique Suzhou gardens. The building stores a large number of antiques, epigraphy, paintings and calligraphy, and cultural relics. It is the largest private museum in Fujian Province.