A three-dimensional cartographic computer user interface system for enhancing geo-spatial comprehension and geographic information system user interactivity is disclosed. The system has at least one computer and operating system, user input means, and at least one positionable projection display means, including storage, retrieval and playback control means for the projected content. The system has user input device software responsive to input from at least one user input device which is operable on a three-dimensional user interface surface of the system, and software for the display and control of cartographic-related projected imagery, and software for the display and control of three-dimensional user interface-related content superimposed within the cartographic-related projected imagery. The system includes at least one cartographic map having at least one surface portion which is three-dimensionally shaped to represent topographic terrain of at least one geographical location and optionally includes a substantially planar surface onto which cartographic-related content is projected.