Greenvil...no. Grnville? Nah. Dang, I wish the limit was 10 instead of 8. =( I can't think of anything else. I don't want to name it a place from something else, like Hyrule or Kanto. But for people who might like to do that, here are a few you can use:
Hyrule
Termina
GreatSea
Outset
Lanayru
Eldin
Faron
Ordona
Kakariko
Mercay
Labrynna
Holodrum
Koholint
Delfino
Flipside
Kanto
Johto
Hoenn
Sinnoh
Orre
Fiore
Almia
DK Isle
Pop Star
MtDedede
Zebes
Brinstar
Corneria
Lylat
MuteCity
Onett
Fourside
New Pork
Akaneia
Altea
Skyworld
Well, I guess that was more than just a few, lol.