As surprising as it sounds, a Dutch design company Fiction Factory creates modular, compact, and lightweight prefabs from nothing other than large rolls of recycled corrugated cardboard. Called Wikkelhouses, these stylish and eco-friendly dwellings, are comprised of modular elements that you can add, mix, and adopt to your unique needs and desired setting. How timely is this? Each Wikkelhouse is build in a workshop in Amsterdam, and when all the elements are ready, it can be assembled on location in only one day. Each Wikkelhouse is finished with waterproof coating and wood panelling to protect it from all weather conditions. A fantastic idea, beautifully designed.