I came across this interesting site, All Look Same, that I believe grew out of someone's frustration that no one in the western world can ever tell Japan, Korea and China apart. There are some quizes that show pictures of architecture, food, urban landscapes and let you guess which country is which. In a world of increased globalization of architecture and urban form it's actually a pretty interesting test. I'd be interested in seeing one of these with more countries. (btw. my picture is Viet Nam. Which is really a part of east asia, culturally if not geographically, so it should be included too).