Pete looks back at some of the most memorable builds from past seasons. In this episode, elegant cuisine restaurateurs in Portland, Maine turn their 20-year-old dream of having a Pete Nelson Treehouse into a reality. The tastemakers live in a one-room yurt next door to Pete's sister, Molly. The eccentric couple seeks privacy among the trees for entertaining friends. Building a sleek, gorgeous, modern bedroom in the trees, Pete swoops to the rescue. This slumber nest nestles 19 feet high in a grove of eastern hemlocks and white pines with a bridge that connects the yurt's deck, providing easy access for guests. Pete goes above and beyond, packing this floating suite full of firsts: a breathtaking copper roof, a towering rooftop crow's nest, and a giant wall of windows that reveal breathtaking New England scenic views.