Titanic

To mark the 100th anniversary of Titanic's sinking, experts took part in an exhaustive study of the wreck that yielded unprecedented new discoveries and the first comprehensive map of Titanic's watery grave.

The Creative Arts team has just 65 days to recreate the grand staircase from the most famous ship of all time, putting their equipment and wood-working skills to the test.

Did too few lifeboats and cost-cutting materials plus pressure from the owner to travel at full speed bring about the Titanic disaster? And why did the Italian liner Andrea Doria collide with another vessel?