<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEzLzA0LzE4LzZjL0NvbmNlcnQuMzc1YjEuanBnCnAJdGh1bWIJMTIwMHg2MjcjCmUJanBn/a0eed0d3/ec0/Concert.jpg>
<http://mashable.com/2013/04/12/concert-vault-ipad-app/>