In this study, an ontology-driven context-aware game-based inquiry learning application ‘MUSEON’ was developed in order to generate adaptive learning content for museum exhibits. The application consists of three components; mobile inquiry, web server and ontology. Visitors have to learn about the exhibits in Maritime museum. When visitors are close to any designated exhibit then the application will give inquiry tasks in the form of questions through Bluetooth low energy beacons. The questions are generated using ontology-based approach. The results of this study indicate that museum visitors enjoyed this ontology-driven context-aware game-based inquiry learning application for learning about museum exhibits.