10 Surreal Tree Houses That Will Make Your Childhood Dreams Come True

"I had to let the trees decide how the tree house would be,"explains Lukasz Kos, a Toronto-based designer and cofounder of the architecture firm, Testroom. The low-impact 4Treehouse is a lattice-frame structure that respects and responds to the nature surrounding it, appearing to levitate above the forest floor of Lake Muskoka, Ontario.