Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Trinidad and the Valley de los Ingenios' has mentioned 'UNESCO World Heritage Site' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Together with the nearby Valle de los Ingenios, it has been a UNESCO World Heritage site since 1988, because of its historical importance as a center of the sugar trade in the 18th and 19th centuries. | WIKI |