People look on as the capsized cruise liner Costa Concordia lies on its side next to Giglio Island September 16, 2013. Salvage engineers pushed back the start of an operation on Monday to lift the wrecked liner upright after an overnight storm interrupted preparations, officials said. The so-called "parbuckling" operation will see the ship rotated by a series of cranes and hydraulic machines, pulling the hulk from above and below and slowly twisting it upright. REUTERS/Tony Gentile (ITALY - Tags: DISASTER MARITIME SOCIETY)