Ruins of a large fortification built in the early 15th century by Hồ Dynasty. Fortification walls enclose rectangular area, outer side of walls is 870.5 by 883.5 m large. Complex was built according to feng-shui (geomantic) principles – one of the first applications of this philosophy in the city planning in this part of Asia.

Location, GPS coordinates:	20.0779 N 105.6045 E
Categories:	Fortresses and forts
Values:	Architecture
Rating:
Where is located?	Asia, Vietnam, North Central, Thanh Hóa Province, Vĩnh Lộc District, Tây Giai commune