This article documents research in the field of virtual reconstructions of the past. It makes the point that in order to truly develop the bases of a solid appreciation of cultural patrimonies, historic virtual reconstructions need to incorporate a willingness to achieve higher digital modelling and rendering qualities. And, they should also be well integrated into history courses at all education levels and through a variety of means of communication. In other words, our ability to explore, to interpret and to appropriately use digital tools needs to aspire to greater and more penetrating abilities to reconstruct the past. As a case study, the paper presents the theoretical reconstruction of the Aztec Templo Mayor in Mexico (1). The presentation describes how a variety of digital approaches was used to grasp and appreciate the very significant architectural contributions of the early inhabitants of the Americas.