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Lang Son Ancient Citadel, also known as Doan Citadel, is one of the most significant historical and architectural relics in Vietnam’s northern borderlands. Located in Chi Lang Ward, Lang Son City, this site not only reflects the military architectural prowess of feudal Vietnam but also stands as living evidence of Lang Son’s strategic importance throughout the country’s history.
By: visitvietnam.org.vn | Published on: 07-29-2025