The paper describes objectives, methods, procedures and outcomes of the development of the digital archive of Palladio works and documentation: the <i>PALLADIOLibrary of Centro Internazionale di Studi di Architettura Andrea Palladio di Vicenza</i> (CISAAP). The core of the application consists of fifty-one reality-based 3D models usable and navigable within a system grounded on GoogleEarth. This information system, a collaboration of four universities bearers of specific skills returns a comprehensive, structured and coherent semantic interpretation of Palladian landscape through shapes realistically reconstructed from historical sources and surveys and treated for GE with Ambient Occlusion techniques, overcoming the traditional display mode.