Spot the differences.
The player is shown pairs of images, each of which feature two nearly identical photographs of some city around the world. Between every two photographs there are five differences, which should spotted as quickly as possible. The differences are fixed by clicking either of the photos with a left mouse button.
The set of five differences will vary with every gameplay to make sure the city tour stays enticing enough, even for an avid player.
. Spot the differences. The set of five differences will vary with every gameplay....