Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Historic Centre of Oporto, Luiz I Bridge and Monastery of Serra do Pilar ' has mentioned 'National monument' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The historic area is also a National Monument of Portugal. | WIKI |
| The entire historic centre has been a National Monument since 2001 under Law No. | WIKI |
| The entire Historic Centre of Oporto is classified as a National Monument under Law No. | UNESCO |