In the 1940s and ’50s, midcentury-modern design, with its clean lines, warm woods, and bold upholstery hues (often in woolly, menswear-inspired textures), changed the way homes looked. Suddenly, less was more, and decorating a home was about finding a design where form served function—a philosophy that continues to inspire designers to this day. From Mies van der Rohe’s Barcelona chairs to Charles and Ray Eames’s designs for Herman Miller, countless modernist furnishings have cropped up in the pages of AD through the years. Here, we take you inside a Beverly Hills mansion, a New York City duplex, a Paris apartment, and other homes that display the height of modernist design.