Augmented Reality is an emerging educational technology that has the potential to provide innovative methods of teaching and create engaging learning experiences. Augmented Reality applications implementing game-based design could enrich education by increasing motivation and engagement and enabling better learning outcomes. Similarly, Augmented Reality, in the context of Geography, could enhance the learning process and the user experience through the visualization of the content and a better understanding of abstract concepts. Therefore, in this study, (a) three specially designed Augmented Reality applications are described for teaching Geography in the fifth and sixth grades, and (b) an extensive usability evaluation study is reported using the three applications. Teachers (N = 6) and pupils (N = 43) from the fifth and sixth grades, as well as computer science students (N = 43) participated to assess the usability of the proposed Augmented Reality apps. The results were positive since the proposed Augmented Reality apps provided high-level usability. Finally, they revealed that there was acceptance for the Augmented Reality technology by all participants and a willingness to be incorporated into the teaching process.