Across
- 2. most populated country
- 3. hottest place
- 6. largest lake
- 8. deepest cave
- 11. rainiest place
- 13. largest rainforest
- 14. largest children population
- 15. tallest waterfall
- 18. longest bridge
- 19. coldest place
- 20. largest coral reef
- 21. oldest building
Down
- 1. least populated country
- 4. dryest place
- 5. most powerful volcanic eruption
- 7. longest river
- 9. largest continent
- 10. tallest mountain
- 12. largest canyon
- 16. most populated city
- 17. tallest building