We have developed a GUI tool and a mobile MR system for reliving experiences at museums. The GUI tool was developed to provide services based on content made from activity logs and to enable effective analysis of visitors’ behaviors using the logs. In addition, by running the GUI tool on a mobile MR system, users can browse visitors’ activities with a sensation of realism on the spot. This paper describes the GUI tool and a pilot user study that was conducted to evaluate it. CR Categories and Subject Descriptors: I.3.6 [Computer Graphics]: Methodology and Techniques - Interaction Techniques; H.5.2 [Information Systems]: User Interfaces – Graphical User Interfaces.