Dong Hoi Citadel (Quang Binh Gate)

Dong Hoi Citadel, whose preserved southern gate is known as Quang Binh Quan, is a historic fortification in central Dong Hoi, Quang Tri Province. Originally built in 1631 and rebuilt in brick in 1812 under Emperor Gia Long of the Nguyen Dynasty, it once enclosed the provincial capital with walls and moat. Today only the main gate and sections of wall remain, serving as a landmark and symbol of the city near the Nhat Le River.

Visitors can expect to see the restored southern gate of the former citadel, a two-story brick structure with traditional Nguyen Dynasty architecture, arched entrance, and observation pavilion on top. The gate stands at a busy central intersection, surrounded by urban streets, with remnants of earthen walls and moat nearby. The site is open-air and accessible from the street, suitable for short walks, photography, and viewing historical plaques.