In the basement of the castle there is a permanent exhibition of 39 statues of the Warriors of Xian; they are faithful reproductions of the originals, authenticated by the Chinese government. The life-size terracotta statues are deployed just as they were in the 3rd century BC, when they were placed to guard the mausoleum of the first Chinese Emperor, Quin Shi Huang. The fabrication technique is the one used in ancient time; it consists in compacting circles of clay to create the chest to which the head is then added. Afterwards the structure is covered with chunks of clay to create the uniform, decorated and painted. The figures have different poses and specific weapons which correspond to their function in the army. They are all different from one another in facial expressions. The statues of the warriors show exceptional technical and artistic qualities.