1. Africa, Asia, North America, South America, Australia, Europe, Antarctica
2. Asia
3. Australia
4. South America
5. Asia
6. Europe
7. Atlantic
8. Brazil
9. France
10. Himalayas, Alps, Appalachian
11. 48° N, 2° E
12. 33° S, 18° E
13. Mediterranean
14. Mississippi River
15. Arabian Desert
16. Great Wall of China
17. Macchu Picchu (?)
18. China
19. Nile
20. Yangtze/Yangzi