A project named ”Virtual Museum Net of Magna Graecia” is presented, whose objective is to provide an unitary image of the archaeological heritage of Calabria (a Southern Italian region), through Computer Technology, Multimedia Designing and Virtual Reconstructions. The project aims to encourage the technological transfer of the most advanced researches in the exploitation and conservation sector of the Cultural Heritage. The ”Virtual Museum Net of Magna Graecia” project is included in the context of Knowledge Media Design for Museums. This project links the museum scenery and multimedia, in order to use technology as system of representation.