Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Historic Centre of Mexico City and Xochimilco' has mentioned 'Urban area' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Since then, the whole Federal District, whose delegaciones had by then almost formed a single urban area, began to be considered de facto a synonym of Mexico City. | WIKI |
| When the Federal District was created in 1824, the urban area of Mexico City extended approximately to the area of today's Cuauhtxc3xa9moc borough. | WIKI |
| [citation needed] However, the metro covers less than half of the total urban area. | WIKI |