3D terrains are more realistic due to their physical (depth feature) form, giving the insight of a scaled version of the actual geography and helping in proper visualization and planning. Realistic visualization due to 3D features and artistic presentation of geographical and topographical distributions. The 3D terrain model is an exact scaled form of a region, like a bird's eye view. 3D terrain models are accurate as they are made from CAD/GIS computer data with exact elevation and coordinates, and are weather resistant as well.