Extracting full resolution images from online galleries.
Many art websites attempt to prevent the visitor from downloading the actual images. This is one way that might or may not work (depending on the website).
Firefox example:
This needs javascript.
Find art, ie: https://www.moma.org/collection/works/104211, Ctrl+Shift+I (webdev tools), click on "Network" tab, click Reload. Click on the picture to make it larger. Look for the largest jpeg in the list. Copy its url.
