Last week, Karlie Kloss revealed—via a series of Instagram posts, natch—that she was taking a course at Harvard Business School. And that could just be an appetizer, as the model recently told The Daily Front Row that "[a full program at] Harvard at some point is in the plan." Kloss is, of course, not the only model who has used her time off the runway, so to speak, to focus on various projects or pursuits, whether they be academic or—in the case of Gisele, who revealed this week she raises chickens—agricultural. Let's take a look.