Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Monumental Earthworks of Poverty Point' has mentioned 'National Historic Landmark' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The Poverty Point site has been designated as a U.S. National Monument, a U.S. National Historic Landmark, and UNESCO World Heritage Site. | WIKI |
| At first the United States Congress declined to support the protection, fearing the unpopularity of acquiring the land from local landowners,[53] but the site was designated as a National Historic Landmark on June 13, 1962. | WIKI |