SAO PAULO – UNESCO added five cultural sites to its World Heritage List on Sunday, including the Imperial Citadel of Thang Long-Hanoi in Vietnam.

The citadel, built in the 11th century by the Viet Dynasty, became the 900th site listed as a World Heritage Property. With the other four sites added, the total increased to 904.

The other new sites are the monuments of Dengfeng in China, the archaeological site Sarazm in Tajikistan, the Episcopal city of Albi in France and a 17th-century canal ring in Amsterdam.

On Saturday, UNESCO added nine sites to the list, including Bikini Atoll in the Marshall Islands, home to nuclear bomb testing in the 1940s and 1950s.

The UNESCO meeting to consider cultural sites for listing ends Tuesday.