After a 19-hour feat, the Costa Concordia cruise ship has been righted in what has been labeled as the biggest and most expensive salvage operation in history. The goal, attained by a team of 500 engineers and technicians headed by Nick Sloane, was to raise the ship from its side by 65 degrees to a vertical position for eventual towing. A foghorn sounded shortly after 4 am on Tuesday to signal that the operation had been completed successfully. Below is a series of photos showing the Costa Concordia, which remained capsized in the waters off the Island of Giglio for 20 months, before and after the parbuckling operation.

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

Concordia shipwreck

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Here's a one-minute timelapse footage of the Costa Concordia salvage operation: