1257 establishments

Hailongtun () is a ruined fortress on the Longyan Mountain, in Hailongtun Village, Gaoping Town, Zunyi City, Guizhou Province, China. It was the stronghold of the Chiefdom of Bozhou until its destruction by the Ming dynasty after the Bozhou rebellion. Considered the only well-preserved site of a true feudal castle in China, Hailongtun is one of the three Tusi sites designated by the UNESCO as a World Heritage Site on July 3, 2015.