Joconde - Catalogue des Collections des Musées de France
 

http://www2.culture.gouv.fr/documentation/joconde/fr/pres.htm

Bildarchiv Foto Marburg

https://www.uni-marburg.de/de/fotomarburg

Prometheus bildarchiv (per istituzioni collegate, ma per COVIS-19 con possibilità di registrazione individuale)

https://prometheus-bildarchiv.de/en/

museum-digital

https://www.museum-digital.de/

Artcyclopedia (con rinvii ai vari siti in cui si trovano le opere)
 

http://www.artcyclopedia.com

Web Gallery of Art
 

https://www.wga.hu/index.html

Herzog Anton Ulrich Museum, Virtuelles Kupferstichkabinett
 

Virtuelles Kupferstichkabinett

The Morgan Library & Museum, Collection Online
 

https://www.themorgan.org/collection

The Warburg Institute, School of advanced study University of London, Library Research Guides: Online resources and databases:
 

https://warburg.libguides.com/az.php

The Art and Architecture web site (by The Courtauld Institute of Art)

http://www.artandarchitecture.org.uk/index.html

New York, The Metropolitan Museum of Art
 

www.metmuseum.org

Washington, National Gallery of Art
 

www.nga.gov

Artstor
 

https://www.artstor.org/get-artstor/

http://www.internetculturale.it

https://about.jstor.org/oa-and-free/

https://www.museodelprado.es/coleccion

http://pompei.sns.it/prado_front_end/index.php?page=Home&id=4

https://architekturmuseum.ub.tu-berlin.de/index.php?p=54

http://pompeiiinpictures.eu/index.htm

https://www.tate.org.uk/art