Quote Originally Posted by cegorach View Post
Second. Each will require a picture and an icon
I have to stop you here. As you can see in my quote in the first post:

all landmarks share the same icon and description but Info Pic can be different
All icons have to use "forest clearing.bif" (to be indestructible) so they all looks exactly the same. The difference is seen only when you right-click on one of those icons and info pic appears. If you choose to make 4 indestructible cities in one province you will see 4 the same icons in the review panel. I hope it won't ruin the whole thing for you.