<http://schema.org/image>
<https://drscdn.500px.org/photo/15139845/w%3D600_s%3D1/3254be0a1ec6c91c5e1bea6a366a5535>
<https://marketplace.500px.com/photos/15139845/red-sunset-in-ersfjordbotn-by-john-hemmingsen>