This is a cool idea, but it ended up with me recognizing a city or place on every roadsign instead of actually recognizing the style, which takes away a bit from the spirit of the quiz.
I like how I don't have to speak Portuguese, Spanish, Serbian, French, or Maltese to understand them since all can be and are written in Latin script. They are all technically in their own language, but because 'Santiago' looks the same in Spanish and English, you don't need to read Spanish to understand it.
Not really usefull if I can get the information needed to locate it from the sign it self. It would be more interesting if only could look at the design of the sign and the locations it directs.
I agree with others that this is a great quiz, thank you. I have seen in YouTube videos that experienced players of Geoguessr can recognize many countries just by the looks of sign (colours, fonts and so on).
I recognized the third sign before noticing the city of Montreal since the sign is not too far from where I live and I went underneath it quite a few times. I was pleased to see a piece of my home town on a Jetpunk quiz.
Nice, original idea, and I got 100% first try, probably from my GeoGuessr skills, although, I got the Pakistan one only because I have driven past it before