And now, with just days remaining, we head to the very last destination of this 12-week tour, down to the coastal town of Gytheio, which neither of us had ever heard of until we started researching where to spend these last few days.  Likewise, we knew nothing of Mystras until we take a diversion about an hour short of Gytheio, and discover a gem of a place – one last terrific historic site before we end this trip. The new Mystras is a lovely little mountain village where, it turns out, we would have been content to see out the rest of our stay. Way above this delightful village, on…