The internationally recognized WorldImages database provides access to the California State University IMAGE Project. It has just been selected by the Library of Congress for inclusion in its historic collection of Internet materials. It contains approximately 100,000 images, is global in coverage and includes all areas of visual imagery.
License
You are free to use these images for non-profit educational purposes, but we ask that you give credit to the copyright holders who retain rights to the images. These works are licensed under a Creative Commons Attribution-Noncommercial 2.5 License.
Commercial is possible but you have to contact the university.