Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Brimstone Hill Fortress National Park' has mentioned 'UNESCO World Heritage Site' in the following places:
Occurrence Sentence Text Source
Brimstone Hill Fortress National Park is a UNESCO World Heritage Site, a well-preserved fortress on a hill on the island of St. Kitts in the Federation of St. Christopher (St. Kitts) and Nevis in the Eastern Caribbean.
Legislation in 1987 officially declared Brimstone Hill to be a National Park, and it was declared a UNESCO World Heritage Site in 1999.