The "xc-01" is a new kind of telescope where the real sight is superposed by virtual objects. Easy to use like a common telescope it allows the projection of contextual information on the viewer field of vision. The result is an amalgamation of reality and virtuality.There is a large application area of the "xc-01": The virtual reconstruction of ruins in archeology, the projection of rock formations in geology and the visualization of buildings coming into being in architecture are just a few examples. Dependent on the application and the target group these topics are presented factual and informative or didactical and entertaining.Consequently the "xc-01" is a tool to visualize real time localized information for architects, archeologists, statisticians, tourist guides, teachers and many more.The vandalism-proof case of the "xc-01" contains a high-resolution camera, a high-contrast lcd-display, a precise hardware tracking system, an air condition for outdoor use and a coin detector.Th