On my second day in Oxford, I was wandering alongside the old city wall when I came upon a set of heavy wooden doors, a smaller door cut out and open, the same as mine at Balliol College. It seemed an odd place for them, surrounded by nothing but high stone walls, and I had to investigate where they could lead. Peering through, I saw a pointed arch, framing an emerald green lawn, turretted buildings rising behind. A sign said Welcome to New College.