This is the last known photograph of RMS Titanic. She sailed from Southampton in April 1912, bound for New York. There were then two intermediate scheduled stops, Cherbourg in Northern France and Cobh/Queenstown in County Cork, Southern Ireland. This picture was taken on April 11, 1912 by passengers who had left the ship at her last port of call, Cobh/Queenstown. You can follow their story here: http://www.bbc.co.uk/news/world-17659452

More Info: en.wikipedia.org