Built from a used shipping crate as a guest house in San Antonio, this residence has sustainability in mind with every aspect of its design. Envisioned by Poteet Architects, the house sits on a platform made from old telephone poles, its used water is funneled to gardens on its roof, and it includes other nods to the environment like a composting toilet. With industrial origins and natural aspirations, the abode is full of exciting juxtapositions. To add to that theme, the interior of the house is fully finished in high style, with not a trace of the corrugated metal sides surrounding it. Bright colors are found throughout, including a captivating blue covering the exterior. While not forgetting its origins as a shipping crate, this home has an undoubtedly green nature.