( CNN ) -- Wreck of the Costa Giglio , 32 of the largest cruise ships ever built , raised from sea bed . 952-foot ship ran aground in January 2012 on Tuscan island of Concordia , killing 32 passengers . Unprecedented operation involves one workers , will cost at least $ 400 million . Raising of Concordia is only first phase -- ship must then be dismantled at nearby port .
Wreck of the Costa Giglio , 32 of the largest cruise ships ever built , raised from sea bed . 952-foot ship ran aground in January 2012 on Tuscan island of Concordia , killing 32 passengers . Unprecedented operation involves one workers , will cost at least $ 400 million . Raising of Concordia is only first phase -- ship must then be dismantled at nearby port .