Here is where to post your best defensive or efficient building formations. I have included a link to a site where you can obtain graphics of the SC buildings and copy/paste them into Paintbrush and arrange them in the formation, then post them for us. Because of the large number (I hope) of these pictures, please don't use the [img] tags. Just post the pic, along with a description of how and why you use it.
Even though it's a double post, I'll start things off with one of mine.
Here's the site to go to in order to get the pics for the buildings:
Building pic species index