Any carpenter worth his salt can build a treehouse. But precious few can do it with the long-term growth and health of the tree in mind. That's how certified arborist and builder Austin Wienecke found ...

While we love the dangling treetop retreats located at Sweden's Treehotel, and the House Arc had us yearning for a private backyard hideaway, the eco-PERCH has to be the Rolls Royce of modern modular ...