Quang Binh Citadel is a historical fortress located in Quang Binh Province, Vietnam. Built in the late 19th century during the reign of Emperor Gia Long, it served as a military stronghold and administrative center. The citadel features impressive stone walls and a unique architectural style that reflects the influence of both Vietnamese and French designs. Today, Quang Binh Citadel is a popular tourist attraction, offering visitors a glimpse into Vietnam's rich history. The site is surrounded by lush greenery and provides educational opportunities about the region's past, including its role in various conflicts and its significance in Vietnamese culture.