Introduction to Chenglan Hall: Chenglan Hall is located halfway up Chongshan Mountain. It was built in 1931 and is modeled after the palace style of the Song and Ming Dynasties. It is five rooms wide and magnificent. The view here is wide, with green peaks and blue waves all in sight. In the morning, noon and evening, it can be sunny or rainy, and the scenery is unpredictable, comparable to Tengwang Pavilion. Under the hall, there is a bronze "Zhenze Divine Turtle", 1.3 meters high, 1.7 meters long, weighing 700 kilograms, with a dragon head and a turtle body. It was a gift from the Shanghai Bronze Culture Renaissance Company to the first Taihu Spring Art Festival in 1985.