prometheus is a distributed digital image archive that currently makes more than 3,913,000 images of over 125 databases from institutes, research facilities and museums researchable on a common user interface.

Situated at the Institute of Art History of the University of Cologne, prometheus is supported by the non-profit association prometheus e.V. which promotes the ongoing developments of the digital media for science and research.



Image series of the week

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Unicorns in the Image Archive
Fascination for a Mythical Creature – Sublime, white, wondrous, noble, graceful, mystical, pure, with the body of a horse and a long, pointed horn on its forehead, … | more...


News

Do you want to use the image archive on the go?

3 November 2025 | By: Corinna

In recent years, we have made the prometheus app available for mobile use of the image archive. Since the activation of our new frontend in responsive web design, however, it is retired, because you can now also use the image archive in the browser on your mobile devices without any problems.

Have you already tried it?

More: +++ "Image Viewer" +++ New image database: „Ruth Baumgarte“ +++ 25th Anniversary of prometheus +++ Responsive, revised, improved +++ Use your own image database!