As a visual aid, an image like this is a great way to show students an overview of the vocabulary they have learned all semester long. Since our textbook is structured around different German cities in their cultural context, students can associate the vocabulary with content covered throughout the activity, i.e. Hamburg: Hanse (Hanseatic League), Hafen (port), Verlagswesen (publishing industry); Leipzig: Grunderzeit (Wilhelminian Style) , Burgerinitiative (citizens' group), Gewaltlosigkeit (nonviolence). It could also be used to practice noun genders, plural forms, or principal parts of verbs.
In this way, the image becomes more than something to look at, but rather something to explore and engage, reinforcing and refreshing both vocabulary but also relevant material covered in a new way.
Check out Wordle™ and create your own--to save the image just take a screen shot and edit down to size, or post to their public gallery.