My lunch tree now is in full leaves – see photo at the end of this post. When there were still less leaves I realized that this tree is wearing suspenders. Probably put there that those big branches will not fall off on to the street. With the leaves they can hardly be seen. (You can click on the photos for a better view.)
I also saw some blue spraying on the trunk and cigarette butts at its feet:
And here it is in full size. The main church of Lucerne, Switzerland and Mt. Rigi in the back.