French President Francois Hollande (C) looks on a digital tablet, as Louvre Museum President Jean Luc Martinez (2ndL), and French researcher Yves Ubelmann (R), look on, during the opening of the Palmyra Exhibit, a three-dimensional projection featuring never-before-seen images of Palmyra taken by a drone in April at the Grand Palais in Paris, France, December13, 2016. REUTERS/Francois Mori/Pool