Dong Hoi Citadel is located in Dong Hoi city, Quang Binh Province
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Quang Binh is a province in the upper middle region of Vietnam. The width of the province is relatively short, only 50 km from its border with Lao to the seashore, making it the narrowest province on the map of Vietnam. Quang Binh adjoins Ha Tinh in the North, Quang Tri in the South, East Sea in the East and Lao’s Kham Muon Province in the West
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A part of the giant Ke Bang Mount, Phong Nha Cavern belongs to Bo Trach District in Quang Binh Province
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