Finding images of similar works of art, or of other works by the same artist, can be helpful in analyzing and understanding the art object that you are researching. The following database is a good source for finding such images.
This database contains more than 1.9 million high-quality digital images of a wide range of works of art and architecture from all times and places throughout the world. The information provided about the images includes links to the museums and other cultural institutions that supplied the images. Clicking on these links can often lead to much more information about the works of art on the museums' web sites.