Keep trying Forsythia! Some of the categories can be really frustrating. But, I still find this game so addictive... and the thing is... it's really teaching me a lot about geography. I'm on to categories like Latin America, Asia and Australia... areas where I was really pretty bad before. But, slowly but surely I'm definitely improving. The quiz gives the same locations frequently enough that if you do one of the same quizzes several times, you really begin to have stuff memorized.
The U.S.A. challenge is the funniest now... I can't believe how many goofy city nicknames I've memorized. And, now I can click on Juneau, Alaska in less than 2 seconds! Who would have ever thought?
The North American quiz is interesting because there's one whole section of that quiz all about Caribbean Island... and I'm just so terrible at that part it's pretty funny. But, again, by this point I'm improving some.