400,000 free high-res, copyright-free images are now available from from the Metropolitan Museum of Art — Quartzy

"A year ago, New York’s Metropolitan Museum of Art embarked on an ambitious project to give everyone free access to images in its collection. Using the Creative Commons zero license (CC0), the third most visited museum in the world has essentially turned over a trove of high resolution images to any individual or business who wish to use, copy, or modify them for their projects—with no conditions attached."