Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Humberstone and Santa Laura Saltpeter Works' has mentioned 'UNESCO World Heritage Site' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| They were declared a UNESCO World Heritage Site in 2005, as a testament to the historical importance of saltpeter mining in Chile and the culture and social agenda that developed around it in the late 19th century. | WIKI |