<http://schema.org/thumbnailUrl>
<http://media.cntraveler.com/photos/53d9bad6dcd5888e14597594/master/pass/seabourn-odyssey-100782-8.jpg>
<http://www.cntraveler.com/galleries/2012-01-17/photo-tours-top-20-cruise-ships-small-medium-large-river>