Christo gets his final wish as Paris's Arc de Triomphe is wrapped

It was the dream of the late artist couple, Bulgarian-born Christo and his French wife Jeanne-Claude. As they gazed out of their window in the early 1960s, they imagined wrapping Paris's Arc de Triomphe monument in fabric. They laid out detailed drawings and instructions on how to transform the landmark structure and today, their vision has been posthumously realised. We take a closer look.