I punched a tree today...
It just barely had it's first major version release after I think 6 or so years of beta. It is truly Anarchy in a game. Although some laws of nature are not up to reality. We also enjoy Garrys Mod for creating things which is much more realistic, anyways.
Try seed 'oooorgle' when creating a new world. It's a mountain world with a NPC village and the Stronghold close to the main spawn point. It also rains, a lot, but no snow.
Before you choose a world to build your ideas in, be sure to learn what a 'seed' is and come up with one that you like. A seed is basically a world generated by a phrase or text you give it when beginning to build the world from. Each different input will produce a different world with varying terrain and weather etc. Some give big mountains, others give low valleys or lots of snow or ocean. I have no clue on whats what but if you google it you will find youtube vids of people showing off their favorite seeds.
Enjoy, and as many in Minecraft say, "if you don't like the lay of the land, punch it with your fist until it looks right".