You know, what you might be able to do is, first, drop out, then spend a couple of years working / doing something else to make sure that grad school is where you want to be (or build up your skills in medieval / renaissance meanwhile), and then reapply to graduate programs. You might be able to simply leave this grad program off your resume, assuming you don't reapply to the same university (and preferably keep up your contacts at your undergrad for letters of rec). If you aren't happy there and you'd prefer to be studying something else (which your post really seems to make clear), why put yourself into a corner so early in your career? Best cut your losses and run before you get too bitter. Before reapplying though, you should make sure that you would actually be happy doing all that work for medieval art. Sometimes the grass only seems greener on the other side. I'd suggest, drop out, get a job, and try writing a 25-page research paper on something medieval/renaissance in your free time. If you like it after that, reapply with your shiny new writing sample. And come on--you are coming straight out of undergrad, making you presumably not older than say 23/24. Which early-20-something hasn't made a mistake (or a many)? You are allowed to fuck up. There's no way you're the first art historian to have gone though this...