Anyone who reads TreeHugger knows we love treehouses, so here are a few more to add to our obsession. Casa na Arvore, is a Brazilian firm that has been building fabulous spaces in trees since 2003, and on the following pages, you'll see the best of their work.
Run by entrepreneur Ricardo Brunelli with engineer Everaldo Pletz and the Rossato family, the firm has a collective 200 years of experience. At left, the designers' first treehouse, built over a ficus centenary tree.
Courtesy Casa na Arvore.