The first subject I chose is commonplace in Germany, a sign informing the passer by that something is forbidden. A standard joke here is the everything is forbidden unless explicitly permitted. I also liked the detail of the spiders web on the sign. For those interested the sign is basically forbidding feeding the ducks in the nearby pond, universally ignored by one and all!
24-105mm f/4, 80mm, f/4, 1/125s, ISO 400
The next image is a windows in the walls of the Bavarian state court. This image is almost entirely composed of perpendicular lines and so lining up the shot needed great care to avoid converging verticals.
24-105mm f/4, 70mm, f/4, 1/320, ISO 400
My final selection is the very present street side cigarette machine. These are all over the city and it is only recently that mechanisms have been added to ensure that purchasers are over 16. So many people smoke here that these machines make a good income for their owners:
24-105mm f/4, 82mm, f/4, 1/80s, ISO 200