Board Thread:General Discussion/@comment-83.70.203.112-20150923133208/@comment-25396609-20150923183607

It also makes sense that the entire population of each kingdom would live in one city. If we assume they have at most a third of the earths population, then four cities that size would be about right to house them all.

I personally don't give two shits about how buildings look, as long a they do their jobs properly, so simple but effective architecture is all that is really needed.