Something else I forgot, that would have been perfect in MTW and esp. RTW. Give us the ability to "change" a settlement's structures to the player's culture. For example, in RTW I would occasionally get to Egypt after they had made one of the 3 big cities into full sized towns, with the max size governor's palace and possibly walls, and I'd be stuck with those as the Egyptian culture as Roman/Greek/whatever. For perhaps half the cost and a single turn or two, give us the ability to switch them over to our culture so we don't have the cultural penalty. I guess this really applies mainly to max size cities and structures, but I think the basic premise is a great idea.

Cheers!