CMA Headquarters, Marseilles France – Zaha Hadid

The 33-storey structure, which was completed in 2011, is currently the tallest building in the city and features a glazed facade with a seam of tinted glass running up through its centre. The darkened glass tapers outwards at the top, creating the illusion of swelling upper storeys although the building actually has a rectilinear body that only curves outwards at its base.