One of the important goals of the AR Puzzle application is to present geographical information in an attractive manner that would make people, especially children, more interested in geography. The functionality of MRGIS enables educationalists and geographers to build interactive learning scenarios, where participants can gain geographical and navigational knowledge. As an example, we will describe a scenario illustrating the topology of City's University through an interactive 3D puzzle. At the beginning of the game, a user is provided with a set of marker cards. Each card corresponds to a different 3D component of City's University. Moreover, the user can examine the components of the puzzle interactively in a natural way. Furthermore, the user can try different combinations by placing the pieces of the puzzle next to each other. An example screenshot of the solved puzzle is shown below:
In a similar way more puzzle pieces can be modelled and assigned to different marker cards. However, when the application was unofficially evaluated through students, for six pieces the average time for solving the puzzle was 4 minutes. So for the time being it was decided to use only six pieces.
