How many can you find?
There are two pictures nearly identical to each other and you have to find three differences. This was tested on 8000 people, and only 19 people out of 8000 found the three differences. I was only able to find 2, but that's still pretty good. I'm going to give you a hint, look close at the valley and the town.
Some computers may be able to play the background music but it is real low/quiet, so you may want to turn your sound up a tad. Let me know how you do.