Overview: Part two of two. Rob Bell examines RMS Queen Mary, the most famous ocean liner ever built and the first merchant naval ship ever to have been launched by a reigning sovereign. Built in the throes of the Great Depression, the Queen Mary lifted a nation out of an economic slump and re-established Britain as the greatest shipbuilding nation on Earth. Rob discovers how the vessel would come to represent the golden age of ocean passage and epitomise 1930s style and elegance - even going on to capture the prestigious Blue Riband for the fastest Transatlantic passage.