If you are new in the 3D modeling domain, you may be looking for free 3D resources that you can use to master your skills. This article lists a number of websites that provide free CAD models. Whether you want to create architectural models or product models, you will get free resources for every category in every industry. Browse through these websites and check if you are able to find anything of your use. Do keep us posted on this. We would like to see if we can add more information.