alt Hacker News205! The running commentary was fun. And I love how permissive it is -- it was fun stumbling into a new category that you wouldn't necessarily expect to qualify. I do wish that there was an option to see a list of the most popular ones you missed (based on traffic to the article or similar).
For a similar brain exercise, try to Name Every City:
I think they need to restrict their definition of city more. I named some tiny villages and it accepted them.