Ho!
Fly Molo here to take you along on a journey... come along!
I bought this great book many years ago:
Towards the back of the book, they show examples of completed game boards, and if that isn't terrain porn, I don't know what is. GW's official boards are WAY better than most other boards I've played on. The themes, the realism, the quality... they just have great terrain. I guess that makes sense considering that they are the best miniature company in the world.