Based in Oxford, England, Adrian James Architects have designed what might be the world's most curvaceous house. Dubbed "Incurvo," large curved windows that dot the property open it up, letting in lights as well as offering panoramic views of the garden, water, trees and rolling hills that surround it.
Going for maximum sustainability, the construction meets the loftiest standards of insulation, thermal bridging, airtightness and thermal comfort, and even has three separate renewable energy systems. Not only that, but it has been constructed from materials that will age gracefully and need no maintenance nor upkeep.
For more rounded architecture, check out the futuristically trippy "wave house."