Vietnam will submit a bid to the UN cultural agency, UNESCO to have the ancient citadel ruins in the capital Hanoi declared a World Heritage site.
Vietnam News Agency reports Japanese and French archaeologists are helping Vietnam prepare the bid to have theThang Long Imperial Citadel site recognition from UNESCO.
Workers are now excavating palace structures and artifacts at the site which was first discovered in 2002 during excavation work to build a new national assembly.
Vietnam hopes to have the citadel listed before Hanoi celebrates its one thousandth birthday in 2010.
Hanoi became the capital of Vietnam in 1010 under the Ly dynasty, and was then known as Thang Long, or Ascending Dragon, symbolising the desire for independence after a millennium of Chinese domination.