This bright and welcoming glass house in Southampton, New York, is like a breath of fresh air. The modernist retreat features mid century furniture that is sleek yet livable, and natural elements throughout, adding an earthy appeal to its sophisticated spaces. The living room, which is outfitted with an organically shaped coffee table, a low-slung sofa and rattan PK 22 lounge chairs by Poul Kjaerholm, exemplifies the effortlessly elegant atmosphere that pervades the home.