SketchUp - 3D for Everyone
progeCAD - progeCAD is DWG/DXF-native CAD software, built for professional drafting.
Autodesk AutoCAD - Autodesk AutoCAD is a commercial computer-aided design (CAD) and drafting software application.
BricsCAD - A powerful CAD platform, with features familiar to you from native .dwg applications.
Sweet Home 3D - Sweet Home 3D is a free interior design application that helps to draw the plan of house, arrange furniture on it and visit the results in 3D.
MicroSurvey Software - MicroSurvey CAD is a full-featured CAD package that lets you do everything from creating point clouds to designing complex survey networks.