Sustainability is a serious subject, but that doesn’t mean we can’t introduce more light-hearted elements into our creations. The Green Zero project, by Daniele Menichini Architecture, is a modern living space that combines renewable technologies with fun. Located in Revine Lake, Italy, the quirky structure features a hidden rainwater collection system that takes advantage of the skewed hollow-core columns supporting the overhanging roof. Several of the columns, or in this case pipes, are used as channels for transporting rainwater to the collector tank.” – Humble Homes