An apparatus, system, method, and program for using GIS data include a three-dimensional model of an architectural structure for presenting the GIS data to a user. When the user selects a portion of the three-dimensional model, GIS data associated with the selected portion is retrieved from a GIS database...http://www.google.com/patents/US20040075697?utm_source=gb-gplus-sharePatent US20040075697 - Apparatus, system, method, and program for using GIS data