Admit it, even though you’re a grown up and have kids of your own, your still dream of a totally decked out space nestled high up in the trees. Will you settle for a coffee table book? Tree Houses. Fairy Tale Castles in the Air is a new and stunningly-illustrated study that offers a tour of the best tree houses in the world, some designed by architects, others the work of unknown craftsmen. A teahouse, a restaurant, a hotel, a playhouse for children, or a perch from which to contemplate life—the tree house can take as many forms as the imagination can offer.