A first giant sheet of fabric is draped down the Arc de Triomphe in Paris as work started to wrap the monument in a tribute to late artist Christo. After weeks of preparations, the final stage of the art installation has begun, with a silver-blue sheet of recyclable polypropylene unfurled from the top of the imposing war memorial at the top of the Champs-Elysees. Over the next few days, the entire Arc will be wrapped in 25,000 square metres (270,000 square feet) of fabric -- the signature of Bulgarian-born Christo, who died last year. IMAGES from Arc de Triomphe's rooftop