Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Historic Centre of Siena' has mentioned 'Hectares' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The property covers 107 hectares and is defined by the ancient city walls, which provide a clear boundary. | UNESCO |
| The site is surrounded by a buffer zone of 9,907 hectares extending into the territory of the municipality. | UNESCO |