I've started taking random pictures of buildings for AM users use as you like. No annoying watermark or copyright involved, nor do I care about any credit.
These I'll soon add to my website's hompage once I have at least 100 images taken.
My site: http://members.cox.net/time-killer-games/
I'll be adding them rapidly, so there will be variety without you having to worry about waiting when in just a few days there will be plenty images uploaded in this topic. I'll make sure there will be a lot of variety so you guys will fore sure find what you need.