Be sure to use the search feature to find things in this huge collection of online materials such as photographs, advertisements, sheet music, manuscripts, audio recordings, videos, maps, and newspapers. May take some digging, but contains great sources.
Contains the former "American Memory Project"
Museum is devoted exclusively to historical and contemporary design, includes 215,000 design objects spanning 30 centuries. Items range from ancient textiles and works on paper to icons of modern design and cutting-edge technologies.
Contains images of over 33,000 objects ranging from the Middle Ages to the 21st century and includes paintings, drawings, ceramics and sculptures, among others.
Over 490,000 of the Metropolitan Museum of Art's high resolution digital images are freely available for non-commercial use. The Image & Data Resources page will explain more about the images and terms of use. Look for the OASC icon in photo captions for open-access images.
Search 17.5 million objects from Yale's art museums, archives, and libraries simultaneously. Find and connect with the cultural heritage collections across Yale's collections in new ways and in one place. Yale University, New Haven, CT.
The National Gallery of Art has over 50,000 works of art with free images. The Gallery has an open access policy for images of art in their permanent collection which the Gallery believes to be in the public domain. These images are available for download free of charge for any use, whether commercial or non-commercial.
A collection of over 26,000 works, created by more than 3,900 American artists during the twentieth and twenty-first centuries. Most are viewable online. (New York City)
The national museum of the Netherlands. Covers 800 years of Dutch history, from 1200 to the present. Includes over 840,000 artworks and publications. English language access.