Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Tombs of Buganda Kings at Kasubi' has mentioned 'UNESCO World Heritage Site' in the following places:
Occurrence Sentence Text Source
UNESCO World Heritage Site
It became a UNESCO World Heritage Site in December 2001,[1] when it was described as "one of the most remarkable buildings using purely vegetal materials in the entire region of sub-Saharan Africa".
[5][6] In 2001, the Kasubi Tombs were declared a UNESCO World Heritage Site .