Behind the Three Corn-Ear Hall stands the Yangshan Hall (Hall for Viewing the Mountain) built in 1866. Opposite the Yangshan Hall is a beautiful rockery hill which is called Grand Rockery. Designed by Chang Nanyang, a famous landscape architect, it is a rarity in southern China. While sipping tea with your friends in the hall as the owner did, you can enjoy the rockery hill in front. As is described by the words on the plaque in the hall "High Mountain Ridges", the 12-metre high rockery hill, dumped with 2,000 tons of rocks, is noted for its steep cliffs and hidden, winding paths. It is no exaggeration to say that the rockery hill is the crystallization of the wisdom and creativeness of the working people as to move the rocks from 200-kilometre-away Wukang in Zhejiang province alone was no easy job at all. What is more amazing is that the rocks were stuck together by cooked glutinous rice mixed with alum and lime, for at that time cement was not available.