Gratisography currently provides a total of about 700 free high-resolution images completely without copyright restrictions. The website claims that the collection comprises “the world’s best, most creative images – photos you just won’t find anywhere else.” The focus is on “whimsical” images. The site is associated with Shutterstock (which, however, provides images at cost). So don’t be surprised when search results turn up a large proportion of Shutterstock images.