1. A geospatial data system comprising: at least one geospatial data storage device containing three-dimensional (3D) geospatial structure data, and also containing geospatial texture data associated with the geospatial 3D structure data and being retrievable in successive additive layers of resolution; and at least one geospatial data access device comprising a display and a processor cooperating therewith and configured to communicate with said at least one geospatial data storage device to retrieve and display 3D structure data for a scene on said display, and retrieve and display successive additive layers of resolution of geospatial texture data overlying the 3D structure data; said processor configured to prioritize the retrieval and display of the successive additive layers of resolution of associated geospatial texture data to different 3D geospatial structures within the scene on said display.