METHODOLOGY OF DIGITAL SURVEY FOR THE DOCUMENTATION OF THE ARCHEOLOGICAL HERITAGE, THREE PROJECTS FOR UNESCO WORLD HERITAGE SITES: VILLA ADRIANA IN TIVOLI (ROME), THE FORTRESS OF MASADA (ISRAEL) AND THE BASILICA OF THE NATIVITY IN BETHLEHEM (PALESTINE).

New media and digital tools offer us the possibility to experience, as visitors, travellers or even as resident, 3D virtually reconstructed historic sites. Many critics have identified different issues that often inhibit widespread distribution and use of virtual heritage. This paper through some examples of three UNESCO World Heritage archaeological sites, Villa Adriana in Tivoli (Rome), the Fortress of Masada (Israel) and the Basilica of the Nativity in Bethlehem (Palestine), tries to show and analyze, even critically, some of the different methodologies and investigation strategies at our disposal for the construction of equipment documentaries and surveys also aimed to the virtual reconstruction of the archaeological heritage.