I had a momentary flashback to playing Carmen Sandiego when I was a kid. It think this would be a great educational tool.
Some thoughts (in no particular order)...
* I had one repeat video (which I had gotten wrong the first time), and two videos of the Brandenburger Tor (Berlin).
* It's interesting how many of them have flags in the shot - were the shots selected this way on purpose? It made me think how often there are flags everywhere that we barely notice. That plus the writing system, plus which side of the road people are driving on, makes some of them fairly easy. I imagine you could make a more difficult level if you wanted to, just by increasing the number of multiple choice answers or making more of them be from the same country or region.
* I wish there was a way to share your score with friends.
Great project!