Architect Joanna Shaw designed a summer camp–style retreat for a family in Midcoast Maine, starting with a single cabin about five years ago. Now, it holds a series of structures, including a "gathering pavilion" with the kitchen and dining and living areas. Each takes its own shape. "The kitchen building is hunkered down and has a flat roof, which is a very different architectural language than the large volume of the guest bedroom tower," Shaw says.