Terragen - Terragen is a scenery generator, created with the goal of generating photorealistic landscape...
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.
Vue - Create vast expanses of terrains, add trees, select the best point of view and render...
SketchUp - 3D for Everyone
World Creator - World Creator is a real-time terrain and landscape generator and creation tool, which is industry proven by many game, movie and artwork companies.
Floorplanner - Floor plan interior design software. Design your house, home, room, apartment, kitchen, bathroom, bedroom, office or classroom online for free or sell real estate better with interactive 2D and 3D floorplans.