There seem to be two ways to play: look around a little, check out the trees, the buildings, the language on the signs and take a wild guess whether you're in Norway or Madagascar or New Zealand.
Luck plays into it. You might really have to guess if you land in a spot like this:
But if there are more details, like landmarks or signs with town or business names, you can use Google in another tab to search and figure out EXACTLY where you are.
I'm told that's cheating, but I don't care. Here's the best I've done with five lucky scenes with lots of detail and method #2 so far this evening, having discovered the game an hour or two ago::