Due to INSPIRE directive, various spatial data infrastructure (SDI) were developed to support research activities. In practice, these tools remain underexploited by researcher for many reasons. First, their use is time-consuming and researchers usually consider that they provide no immediate benefits. Second, their use is often complex and needs a substantial investment for researchers who have a limited expertise in spatial data. Finally, often based on 2D GIS environment, they do not provide an adequate tool for collaborative research in archaeology. From this experience, an interdisciplinary team designed and developed an SDI based on GeOrchestra, synchronized with a share app (owncloud) and coupled to visualization tools (Lizmap, Potree and Cesium). This paper will present the conceptual framework of our SDI and its advantages for the targeted audience. We will then focus on the introduction of open source solutions designed to share and visualize spatial datasets in 3D, relying on the experience gathered from the Aspectus project. The multimodal and multiscalar protocol, from landscape to objects, will be exposed in details. To this end, we will be presenting a few case study examples from France (Chambord, Bibracte, Besançon and Salins les Bains) in order to address researchers concerns about SDI and to discuss technical challenges toward the integration of 3D tools in our SDI platform.