One of the main difficulties in the inspection of Bridges/Viaducts by observation is inaccessibility or lack of access throughout the structure. Mapping using remote sensors on Unmanned Aerial Vehicles (UAVs) or by means of laser scanning can be an interesting alternative to the engineer as it can enable more detailed analysis and diagnostics. Such mapping techniques also allow the generation of realistic 3D models that can be integrated in Virtual Reality (VR) environments. In this sense, we present the ImSpector, a system that uses realistic 3D models generated by remote sensors embedded in UAVs that implements a virtual and immersive environment for inspections. As a result, the system provides the engineer a tool to carry out field tests directly at the office, ensuring agility, accuracy and safety in bridge and viaduct inspections.