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
07-29-2025
Hidden among the endlessly stretching horizons, the “Infinity Sea” – a name both unfamiliar and evocative – is not just an emerging destination on Vietnam’s tourism map, but also a phenomenon whispered from traveler to traveler for its surreal beauty and dreamlike sensation.