De Dong Hoi Citadel - is located in the centre of town. It is a complex of high fences and towers. A citadel is a fortress that dominates the city. This fort had to defend the king and the capital from the Nguyen dynasty defend since 1630. The citadel is 1,500 meters away from the Nhat Le beach and it is adjacent to the Nhat Le River on the east side and the forest on the west side. Only two gates and a moat remain of the citadel. You can climb up in the gates, but inside you will find syringes and burnt debris.
Dong Hoi citadel has played an important position in many periods of history. In 1885 the French army attacked the citadel, but the people and soldiers of Dong Ha defended the citadel well and won the battle triumphant, that's why the French had to withdraw. During the war between Vietnam and France in 1945-1954, the locals also made several attacks on the citadel. Nowadays there is no more war in Vietnam, but the beautiful Dong Hoi citadel is still alive as an honourable symbol of the brave country. It draws many visitors from all places in Vietnam and around the world.