Defunct water towers find themselves in conversation with fence-wrapped workers’ housing in Hilla and Bernd Becher’s somber assemblies of grayscale photographs at the Metropolitan Museum of Art. On display through November 6, the exhibition covers the 50-year joint career of the late-20th-century German photographer couple, as the first comprehensive, posthumous retrospective dedicated to their work. With a large-format camera, the artists captured relics of industrial architecture from blast furnaces to grain silos across North America and Europe; they then arranged the photos into gridded collections organized by building type (or “typologies”) that they called “anonymous sculptures.”