South West
1. Fortune teller's temple
2. Babadi's hidden space ship location
3a. The Z team battle with the androids
3b. Android 19 and 20's first apperance
4. Southern capitol
North West
19ab. Stolen Time machine (Cell traveled in)
20. Fat Buu's house
21. Gingertown (Cell's first apperance)
22. Goku and Vegeta'z (under Majin magic) battle area (during the Buu saga)
23. Cell game stage
24. Central capitol (World King's fortress is located here)
 South East
5. Tenkaichi battle stage
6. Gyuumaoh (Ox king's castle)
7. Cells transformation area
8. android 17 and piccolo's fighting area
9. Goku's and Krillin training area (Dragonball)
10. Kame's (Mutenroshi's) house
 North East
25. Dr. Gero laboratory
26. Northern capitol
27. Vegeta and Android 18 battle location
28. Shop where Android 18 replaces her cloths
29. Radditz first landing area
30. Eastern capital
31. Unknown
 Central West
11. Red Ribbon's main head quarters
12a. Karins tower and Kami-sama's palace
12b. Karins tower post (Bura and Upa's tribe near here)
13. Western capital (Capsule corporation is located here)
14. Vegeta and Goku's first battle
 Central East
15. Palif's army tower (Dragonball)
16. Toninjinka house (Dragonball)
17a. The Son's family house
17b. Grandpa Son Gohan's house
18. Satan city (Orange star high school is located here


Map taken from http://www.dragonball-gt.com