Famous Earth Landmarks

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Across
  1. 3. Group 16
  2. 5. Group 15
  3. 8. Group 21
  4. 11. Group 6
  5. 12. Group 22
  6. 15. Group 4
  7. 16. Group 18
  8. 17. Group 5
  9. 19. Group 3
  10. 20. Group 2
  11. 21. Group 11
  12. 22. Group 1
Down
  1. 1. Group 7
  2. 2. Group 12
  3. 4. Group 8
  4. 6. Group 17
  5. 7. Group 9
  6. 9. Group 10
  7. 10. Group 13
  8. 13. Group 14
  9. 14. Group 20
  10. 18. Group 19