From the Metropolis-Saint Demetrios church, the last main building before the Main Gate. This is the book stand I heard from the guard there. He didn’t know what the image was or why they chose it.
Some people start at the Main Gate and walk up past the Upper Gate where I started, all the way to the fortress. And back down. I think doing that would be a much bigger project than up and down to the fortress at Nafplio. I asked google but she didn’t know.