The Hanoi Municipal People’s Committee has submitted a dossier to the United Nations Educational, Scientific and Cultural Organisation (UNESCO) to recognise its ancient Thang Long Royal Citadel relic as a World Heritage site.

The relic was discovered in 2003 during the construction of a new National Assembly building. The digging revealed an abundance of artefacts and structures from the Ly, Tran, Le and Nguyen dynasties. The structures were built on top of each other and dated from the 10th to the 19th centuries.