I believe Last City can be somewhere in Europe, same for the Farm [i](I really miss this location!)[/i], probably near the EDZ or the Cosmodrome, both are in Russia iirc. There's something I really love about the Tower/Last City, which is the diversity of cultures that you can find in there, many traditional elements from many countries. And a very nice detail from Bungie, is how they have named their Holiday Festivities as [b]Dawning[/b], which is more neutral and inclusive, and realistic than, for example, Christmas/New years. It's very beautiful and respectful both for us the players and the characters.