Why are all humans attracted by trees. Getting up there, sitting on a branch looking down and feeling so safe. It's so cosy, we wish we could stay and make it your home. Remember why we became what we are today. Climatic changes forced us out in the plains where we had to raise into standing position to watch out for dangers. Our attraction for treehouses is longing back to where we came from prior to homo erectus, up there in the trees. Treehouses are houses built in trees. Treehouses covers all kinds of constructions from a simple plateform to a permanent living.