AutoDesk InfraWorks 360 - InfraWorks 360 preliminary engineering and design software provides tools to work on infrastructure projects in a real-world context.
SketchUp - 3D for Everyone
ActCAD - ActCAD is one Software for many applications covering the primary domains of – Architecture, Engineering, Construction (AEC) including Structural, Electrical, and Mechanical.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
Autodesk Smoke - Autodesk Smoke is a video editing tool appropriate for both industry professionals and amateurs looking to experiment with video production.
FreeCAD - An open-source parametric 3D modeler