- Wreck of the Costa Concordia, one of the largest cruise ships ever built, raised from sea bed
- 952-foot ship ran aground in January 2012 on Tuscan island of Giglio, killing 32 passengers
- Unprecedented operation involves more than 500 workers, will cost at least $400 million
- Raising of Concordia is only first phase -- ship must then be dismantled at nearby port
This story was originally published in August 2013, before the Costa Concordia was re-floated and taken to Genoa to be dismantled.
(CNN)It's been 19 months since the Costa Concordia, one of the largest cruise liners ever built, ran aground off the west coast of Italy, killing 32 passengers and capsizing after granite rock tore a 50-meter hole in the ship's hull.