Dating back nearly 2300 years, Co Loa Citadel rose as the formidable heart of the ancient Au Lac kingdom under the legendary rule of King An Duong. Early chronicles whisper of a fortress guarded by a miraculous crossbow and protective magic, yet even these divine interventions could not shield the empire from a devastating domestic betrayal. This is the dark history of an ancient superpower dismantled from within, a tragic saga of lethal espionage and royal bloodlines swallow

Constructed on the remains of a 7th century Chinese fortress, the Thăng Long Imperial Citadel was built on strategic reclaimed river lands on the lower Red River Delta and for nearly 13 centuries, remained the regional powerhouse of Northern Vietnamese political & military domination. Shortly after his ascension to the throne, Emperor Lý Thái Tổ declared a royal decree in the year 1010, to move the capital from Hoa Lư and establish a new Imperial City for the Lý Dynasty.