I am signed up for a Best of Turkey tour from late May/early June, but am leaning toward switching my reservation to the mid-May Istanbul tour. This isn't due to any lack of desire to see more of Turkey (in fact, I'm kind of sad about the idea) but rather what I think might work best this year. On the plus side, I'd get a week in Istanbul and, having never been, think that would be a very nice thing!
Anyway, for the most experience Turkey-travelers, thoughts on day, or quick overnight trips, from Istanbul? If I do switch the trip, I'd probably extend my time for at least a few days. I don't have anything particular in mind, but incline toward museums and other "history stuff," walking and food tours, general wanderings around where I can take a lot of photos, etc. For what it's worth, I'm a solo female traveler in her early 40s.