<http://schema.org/image>
<https://drscdn.500px.org/photo/18507613/w%3D600_s%3D1/637d6e72b180d224d9383589b066eabe>
<https://marketplace.500px.com/photos/18507613/sandhill-cranes-at-the-bosque-del-apache-socorro-nm-by-mayank-m->