Here's a list of things i've already build:
-Ba Sing Se
-Northern Watertribe
-Southern Watertribe
-Swamp tribe
-Firenation Capital
-Northern Airtemple
-Western Airtemple

Yeah thanks, srry for the wrong scale. But i didn't think of the big buildings and now it's too late to change it because i've build already a piece of ba sing se and the firenation capital.

Good luck on the map bro, I will be waiting. Also make the map atleast 2000x2000 big or even bigger so the big buildings wont be a problem.