<http://schema.org/thumbnailUrl>
<https://qzprod.files.wordpress.com/2016/10/william_hogarth_-_a_rakes_progress_-_plate_8_-_in_the_madhouse.jpg>
<http://qz.com/798351/bedlam-the-story-behind-the-london-mental-hospital-that-came-to-mean-hell-on-earth/>