Mark Harden's "Artchive" contains images of many essential works of art covered in any survey course. You won't find many obscure artists or rare works here, but if you need a high-quality reproduction of one of the essentials this is an excellent resource. The site is easy to navigate by the alphabetical listing of all the artists and periods/styles on the left of the screen. Each entry ( cave painting, Egyptian, Greek and Roman art) has some text and a list of images towards the bottom. See image use guidelines.
Selected galleries:
- Cave Paintings

Digital Imaging Project

The Digital Imaging Project hosts images of sculpture and architecture from prehistoric to most-modern times. The website is organized by location. The best part of this collection is that each work has many different photographs from various angles, not only the traditional views. See image use guidelines.
Selected galleries:
- Stonehenge

Don's Maps
Don's Maps is NOT just maps: it is a collection of resources for the study of archeology and it includes a number of photographs of sites relevant to art historians. The quality and detail of the images on this website are better than most of the resources I've come across on the Internet. The images are organized by type, including archaeological sites, Venus figures, paintings, tools, etc. All of the photos on the site have captions indicating their source. The creator of the collection is using the images under fair use, but you may want to check with the source policies before using them.
Selected galleries:
- Archaeological Sites
- Venus Figures from the Stone Age
- Paintings, Engravings & Sculpture
- Stone Age Tools and Decorative Objects
- Maps of Prehistoric Sites

Flickr Groups

Flickr Groups are themed image collections created by members of the Flickr photograph-sharing community. There are thousands of Flickr Groups, and more are created daily. The size and quality of images within the groups varies, but overall I am impressed with the images I find there. Copyright protection varies by photographer. A very popular protection on the site is the Creative Commons license, which allows anyone to use, distribute, and change the photograph as long as attribution is given to the creator. To the right of each photograph the copyright information is displayed.
Selected groups:
- Avebury
- Dolmens of the World
- Megalithic Sites of the World
- Neolithic/Mesolithic Artefacts
- Saharan Rock Art
- Standing Stones
- Stone Circles
- Stonehenge

Historic Illustrations

The Historic Illustrations of Art and Architecture Project contains 351 scans of late 19th to early 20th century illustrations of mostly architecture and some art. The collection can be searched, browsed, or you can view the entire collection at once. All the image are open to use by the public.
Selected galleries:
- Prehistoric Europe

Museum of Fine Arts

The Museum of Fine Arts, Boston has digital images of over 300,000 pieces from their collection available on their website. The collection can be browsed, searched, or viewed through interactive tours. A feature called MyMFA allows you to bookmark images to a free account for future use. Images from the website are free to use for educational purposes. See image use policy.
Selected galleries:
- Neolithic
- Prehistoric

Stone Pages

The Stone Pages is a an excellent resource on megalithic sites, created by a couple who traveled together and took thousands of photographs of stone monuments. The images are organized by location (England, France, Ireland, Italy, Scotland, Wales) and also by site. The photographers give permission to use images for non-commercial purposes (see full image use policy).

Wikimedia Commons

Wikimedia Commons is a huge media repository maintained by volunteers. The website has hundreds of thousands of files of images, sounds, and videos for many disciplines. The Art section allows you to browse images from various access points, such as country, culture, genre, period, artist, collectors, etc. Navigation through the various links of the site can be time-consuming, so if you are searching for a specific artwork or artist it would be best to use the search feature (since images are hidden until you get to the most specific category). All of the media files on the site are supposed to be available for educational use-- the specific license conditions of each file can be found on their description pages.
Selected galleries:
- Prehistoric Art
- Cave Art
- Rock Art

World Architecture

The World Architectural History Survey is a collection of architecture photographs from prehistory to contemporary times. The project was created at Bryn Mawr College and the images are to be used for non-profit educational purposes. The site is easy to navigate and most of the images are accessible just one click away from the front page.
Selected galleries:
- Prehistoric Europe

World Images Kiosk

The World Images Kiosk is a collection of over 50,000 images hosted by California State University. The collection is very multi-cultural and it's a great resource for non-western art, which can often be difficult to find online in English. All images may be used freely for educational purposes.
Selected galleries:
- Prehistoric Art & Life
- Neolithic Art
- Celtic & Hiberno-Saxon Art
- Prehistoric Ceramics
- Paleolithic Art & Life