Is Mexico City built on a volcano?

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Tags

1. #initially
2. #indigenous
3. #period
4. #located
5. #texcoco
6. #aztec
7. #several
8. #built
9. #mexico
10. #island
11. #during
12. #inhabited
13. #groups
14. #valley
15. #artificial
16. #lagoon
17. #dumping
18. #aztecs