Storytelling has been used as a powerful methodology to design learning activities. By producing their own stories, students learn while developing artifacts which can share with other peer learners generating a rich collaborative learning environment based on constructivism. Digital media and especially hypermedia has been successfully used to support storytelling in learning contexts since it easies the collaborative authoring process and allows creating stories with parallel threads and multiple version, supporting various viewpoints of the same story. Inspired by the context of learning the cultural heritage of the Armenian cross-stones or Khachkars, we developed a tool in which students can create their own hyper-stories for telling different aspects of them. The tool reflects the inherent attachment of the Khachkars to a geographical location by offering a map on which learners can present the location of the stones. Another important aspect of this tool is that learners can explore 3D models of the Khachkars in a virtual museum where they can create their own exhibitions putting together stones which are far apart in the reality.