Smithsonian Open AccessNearly 3 million 2D and 3D digital items from the Smithsonian’s collections -- including text, still images, sound recordings, research datasets, 3D models, collections data, and more from their 19 museums, 9 research centers, libraries, archives, and the National Zoo. Images are free of copyright restrictions and you can use them for any purpose, free of charge, without further permission from the Smithsonian.