It's a normal world, with terraforming as needed, I take extra care to make sure my terraforming looks like it was naturally generated. Except for trees at chunk boundaries, I refuse to cut my trees off like that. As a matter of fact, I go around fixing the cut off trees, but that is beside the point. Also, I love the lightbulb under the slab idea. As for the roads, I know the pain of losing my life to a low hanging branch whilst sprinting along on my horse, and I'll be careful of that. Hopefully there will be spawnable NPCs by the time I convert it to an adventure map. I do already have a story, since it's all from a game I was running, but I have to build it all first.