Actual Categories of Art on Wikimedia

Part of my role as editor-in-chief of Eidolon is that I’m also the journal’s art director. I commission original art for some articles, but for the vast majority of our content I try to find public domain images. Most of these are paintings done by artists who died more than 70 years ago. So I spend a lot of time on Wikimedia Commons, searching for the right art for each article.
The easiest way to navigate through Wikimedia Commons is usually by using their categories. In the process, however, I’ve encountered some categories that are funny, surprising, or downright baffling. Here are a few of my favorites — and I’ll leave you to speculate on how I stumbled across them. Actually, I’d prefer you didn’t.
I apologize in advance for wasting your day.
Human penis in art in various degrees of rigidity:
Still-life paintings of nautilus cups:
Greyhounds in classical scenes other than with Diana:
Graffiti related to greek government-debt crisis:
Bookshelves on Jewish gravestones in Poland:

Donna Zuckerberg does not have a family coat of arms. If she did, it would have some number of octopodes on it, but would not be propaganda.

