If you can't live in a tree house yourself, at least the little invisible people who dwell in your pot plants can. How, you may ask? (You might also ask if there really are invisible people in your pot plants. Answer: maybe.)
Take a look at Cottage Town from Dutch design twosome Ontwerpduo – tiny paper homes made to linger by your favourite houseplant and look full of whimsy and awesomeness.
They come flat so you can fold your own and construct your ideal plant village however you like.