Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Central Sector of the Imperial Citadel of Thang Long - Hanoi' has mentioned 'Fortress' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| It was built on the remains of a Chinese fortress dating from the 7th century, on drained land reclaimed from the Red River Delta in Hanoi. | UNESCO |