Are improved different techniques of 3D restitution of historical and architectural heritage, to define best practices, systems for the replicability and standardization of procedures and finally to gain accuracy and metrical precision. These 3D data can be used as basis for the reconstructive studies of ancient contexts, to improve cognitive accessibility. The general user (general pubblic and specialist too), moving and interacting in 3D space, can receive informations of both historical and architectural contents and technical data about the characterization of materials.