I want to live in a spherical tree house. And after looking at these photos, you probably will too. These little abodes, built by combining the concept of a treehouse with the technology of a sailboat, are actually available for nightly rental, much like a “normal” hotel. But unlike grounded room and board, the spheres are literally suspended in the air, and even rock gently as the wind blows. If you’re seriously interested, consider spending a few days at Free Spirit Spheres on Vancouver Island in Canada, where you can stay in one of the two spheres available for nightly rental.