I saw this tree in Paris close by the Eiffel Tower. Wherever a person could reach was covered by carved graffiti, most of which could not be read at all. I always assume that people do things like this in a symbolic bid for immortality, which nature always seems to block.
I later made this image into a painting, which can be seen here. It is also somewhere back on my WordPress feed, as well.
This drawing is 9″ x 6″ using sepia for the lines and walnut ink washes.