Gilbert & George. The Tuileries. 1974.
Like the modernists, the conceptualists tend to literalize things, make art functional even as it tends toward the "uncreative," "unsoothing," and "unconsumable." And of course, it's stylish. The above room one of the creations of Gilbert & George, whom would certainly be great dinner party guests, though probably better to be a guest of theirs since they seem to have made their lives their art. From the fabulous In & Out: Travels in Conceptual Art in Amsterdam.