Located south of the Red River Delta Region 90 km's from Hanoi, Hoa Lư was a bustling capital city in turmoil during the 10th and 11th centuries. For a short time, it was the economic, political and cultural centre of medieval Vietnam. In 968 A.D, it was strategically built in a flat verdant valley, protected between steep limestone mountains, which created a virtually impenetrable barrier to human traffic.