Q. Where is the copyright free images database?

You can find rights free images through Britannica Image Quest. This education images database provides access to more than two million rights-cleared images from over 50 of the best collections in the world. Subjects include: culinary arts, fashion, medicine, education, sociology, performing arts, architecture and design. 

You can access it by searching "Britannica" in the library homepage search box, or use the above direct link.