Here's the section of wall seen in this photo, but from its foot - and with a better view of the man planting a tree off to the right. This is early November, it's pretty cold, the ground must be frozen hard, and yet there he was, undeliably planting a tree. Cool.

For a close-up of the trekker at the top, click here.

I also really dig the little face in the bottom left. :-)