Just have to share - Rijksmuseum high-resolution downloads free

The Dutch national museum Rijksmuseum in Amsterdam has digitized 125,000 works from its collection and they are available as high-resolution downloads free for personal use. Another 40,000 images will be added  to this electronic archive every year until the entire collection of one million pieces is online. You can create a free Rijks Studio account and categorize your favorite images in folders.