<http://schema.org/image>
<http://rack.0.mshcdn.com/media/ZgkyMDEyLzEyLzI3LzBhL3Nub3d0cmVlcy44ZmQyYS5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/8f415154/586/snow-trees.jpg>
<http://mashable.com/2012/12/26/cold-photo-challenge/>