Horace Burgess (in Tennessee) built a tree house, with a whopping 1,000 square meters (nearly 11,000 square feet) and standing 90 feet tall! It took fifteen years .
The cabin was built with recycled materials.
Interesting fact: the purchase of nails (258,000 total) would have been $ 12,000! In this house you can find a spiral staircase, a basketball court and many balconies. It is open to the public.
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