Introduction to the Yi Nationality Hall: The Yi Nationality Hall building has four floors. The first floor is divided into two units. The first unit displays texts and pictures about the origins and historical evolution of the Yi people. The second unit displays physical objects and pictures about the economic production and living customs of the Yi people. The second floor is the third unit, which displays Yi costumes from both inside and outside the province, mainly from Chuxiong Prefecture. The third floor is the fourth and fifth units, which display physical objects and pictures of the religious culture and language content of the Yi people respectively.