Located 50 km in the northeast of Thanh Hoa city, Ho dynasty citadel is a unique architectural complex built in 1397 by Ho Quy Ly, the founder and the first king of the Ho dynasty in Vietnam. Situated in a magnificent landscape between the Ma and Buoi rivers in Binh Loc district, the citadel was built using large rocks and represents the development of architectural and construction techniques of Vietnamese people 6 centuries ago. The big rocks weighing tens of tones were built up to a height of more than 10 m and manually assembled into a sophisticated arch shape. At a seminar on preserving and promoting Ho dynasty citadel, the delegates stressed the need to protect the relic intact in line with the Law on Heritage and UNESCO regulations. Ho Quang Son, a member of the Central Committee of the Vietnam Cultural Heritage Association and Head of Thanh Hoa province’s Association of Cultural Heritages says that Thanh Hoa province will display artefacts excavated and collected in the citadel and from the public. Mr. Son says: “It is a great honor for Thanh Hoa to have a World Cultural Heritage site. Therefore, the provincial People’s Committee, relevant agencies and investors have designed several programs to preserve and promote the Ho dynasty citadel to domestic and foreign tourists