From Michael Chabon's Wonder Boys:
" . . . we sat parked . . . and waiting for my third wife, Emily, to emerge from the lobby of the Baxter Building, where she worked as a copywriter for an advertising agency. Richards, Reed & Associate's . . . I saw Emily's secretary come through the revolving door and shake open her umbrella, and then her friends Susan and Ben . . . "For those whose cultural references don't include Marvel Comics. Reed Richards is Mr. Fantastic, the brains of the Fantastic Four. He is married to the Invisible Girl, Susan Richards, formerly Sue Storm, and their best friend is Ben Grimm, the Thing. The only one missing from this super-powered quartet is Johnny Storm, Sue's little brother. Johnny is, of course, the Human Torch.
Oh, yeah, the Fantastic Four live in the upper floors of the Baxter Building.