Hidden house (secretly: Operation Hobbit Hole) - a well-sheltered underground house with hobbit-style entrance. I would love to live in a hobbit-like house. It would be built completely into the hillside and underground. And so well hidden.
The burdei dates back as far as 6000 years and it’s a type of half-dugout shelter somewhat between a sod house and a log cabin, usually with a floor that’s 1 – meters under ground level. Not realy a tree house but still cool