Introduction to Sima Mansion: "Sima Mansion" is the most exquisite ancient building in the Ming and Qing Garden Ancient Building Exhibition Area. It covers an area of more than 1,000 square meters. The building is large in scale, has obvious features, and is exquisitely decorated. It is an ancient Huizhou building in the Qing Dynasty that integrates opera hall, calligraphy hall and literature hall.