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File photo of a volunteer taking a photograph of the Olympic rings at the Athletes' Village at the Olympic Park in London

A volunteer takes a photograph of the Olympic rings at the Athletes' Village at the Olympic Park in London in this July 19, 2012 file photo. Sleep deprived, rain-soaked and unpaid, London's army of Olympic volunteers - officially known as "games makers" - are surprisingly upbeat, and have won admiration for their work shepherding thousands of fans around sports venues. REUTERS/Jae C. Hong/Pool/Files (BRITAIN - Tags: SPORT OLYMPICS)

The hottest investments made by Gulf Arabs

It takes more than petrodollars to make smart investments. From London to Paris to New York, GCC Arabs are spreading their financial clout far and wide. Here's a look at some of their trophy assets.