Ancient gates and royal remains inside the Imperial Citadel of Thang Long, a UNESCO World Heritage Site.
The Imperial Citadel of Thang Long is a UNESCO World Heritage Site and one of the most important historical complexes in Hanoi, representing more than 1,300 years of continuous royal history. Once the political center of Vietnam under multiple dynasties, the site preserves ancient gates, archaeological remains, royal foundations, and military structures. Visitors can explore landmarks such as Doan Mon Gate, Kinh Thien Palace foundations, and underground bunkers from the 20th century, showing the layered history of the capital. The spacious grounds and well-preserved relics make the Imperial Citadel of Thang Long a key destination for travelers interested in Vietnamese culture, architecture, and imperial heritage.