An architecture competition was launched February 12 by the Thang Long Ancient Citadel Preservation Center.
The contest aims to choose the best design that promotes the value of the archaeological site, presents a harmonious combination of landscapes and surrounding architecture, and builds a historical and cultural park, said director Nguyen Van Son.
Forty local and foreign companies have registered for the contest.
The ancient Thang Long Imperial Citadel at 18 Hoang Dieu Street, Hanoi was recognized as a world cultural heritage by UNESCO in 2010.
