In each of these puzzles you are placed in five different locations around the world (in Google Street View) and your task is to indentify (or guess) where you are. Once you think you have an idea, you mark it on the map and score points depending on how close you are.
Every day there is a random puzzle generated (selected from 14,000 cities/towns). As these locations are computer generated, they can be quite challenging. There are also curated puzzles, some supplied by dkmgames and hopefully many contributed by users.
The point scoring algorithm differs between the random puzzles and those created by humans. The latter requires much more accuracy to score as many points. Also, in the random puzzles, if you get the correct country, you score a bonus 100 points. Each location in the random puzzles will be in a different country.