cohost, do you have a favorite list on wikipedia or other wikis? this is mine, but i've also been into category: rooms today.
this long deleted list of places names in lechuguilla cave
(https://en.wikipedia.org/wiki/Special:MobileDiff/247117032)
List of Eponymous Laws, i.e. facts that are named after a person. I like this list because it's so eclectic. Core principles of epidemiology, magnetism, and Bantu linguistics, co-mingled with laws like "Ninety percent of everything is crud."
Honourable mention to the "Notable Sets of Stairs" section on the Stairs page, which I was just looking at.
I like the list of individual dresses, which I found while reading about The Dress.
But especially the "ambiguity" and "other languages" sections, which used to be a separate article called "List of homophonous phrases"