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18 of the world's most stunning treehouses

O2 Sustainability Treehouse

Photo: O2 Treehouse

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O2 Sustainability Tree House

Dustin Feider had a different vision for treehouses than the conventional shack-like wooden structures often seen in suburban backyards. He wanted to design an eco-friendly structure that could sit among the trees without harming them, and that’s how he created the first O2 Sustainability Tree House. These unique treetop domes are constructed entirely of recycled materials, and they hang from cables instead of being bolted to trees so their impact is minimal.