Originally posted by Smash
One could argue(successfully) that no improvements at all are needed for any level.
I think a "mistake" players make is trying to make every city a super fat metropolis.Better to concentrate on a few cities and make those the core of your economic/science/militaristic empire.
Certain cities should have specific purposes.Like this one spits settlers,this one build barracks and veteran units,this one builds wonders...etc.
Diversify.
It is interesting to see the perspective of someone who's been playing for a long time. For me, building and managing a Civ of big, "fat" cities is what I enjoy most about the game...I'm kinda dissappointed when my reasearch tree hits Future Technologies...

Q
ps- can anyone point me towards a good comparison between CivII vs CivIII?