Brazil Barbecue Cafeteria in Sao Paulo According to Baidu map, Brazil Barbecue Cafeteria in Sao Paulo, Hengyang City is a buffet. Hengyang generally refers to Hengyang. Hengyang is a prefecture-level city and sub-central city under the jurisdiction of Hunan Province, which is located in the south of China and the south-central part of Hunan Province. It is an important member of the urban agglomeration in the middle reaches of the Yangtze River, the political, economic, military and cultural center of southern Hunan, and has been positioned as a key city in the central region by the state.