Hazy Map

1. Vertical Flight 
2. Sport Aviation
3. General Aviation
4. Business Aviation 
5. Commercial Aviation
6. Pre-1920 Aviation
7. World War II Aviation
8. Korea and Vietnam 
9. Cold War Aviation 

10. Modern Military Aviation
11. Aerobatic Flight 
12. World War II German Aviation
13. Ultralight Aircraft
14. Interwar Military Aviation
20. Human Spaceflight
21. Space Science
22. Applications Satellites
23. Rockets and Missiles