Titanic’s hull under construction at Harland & Wolff, Belfast, 1910

The Arrol Gantry — the massive steel framework used to build Olympic and Titanic simultaneously

Launch day, May 31, 1911. Over 100,000 spectators watched the hull enter the water

The Grand Staircase. The clock at the top was flanked by carved figures representing Honour and Glory

The first-class dining saloon. The largest room on any ship at the time

The boat deck, showing the lifeboats. Note how few there are relative to the ship’s size

Departing Southampton, April 10, 1912. The near-collision with SS New York is visible in some photographs

Passengers on the promenade deck during the voyage

One of the last known photographs of Titanic, taken at Queenstown, April 11, 1912

Survivors aboard RMS Carpathia, April 15, 1912

Crowds waiting at Pier 54, New York, for Carpathia’s arrival

Newspaper front pages from April 16, 1912. Initial reports were confused and contradictory

The bow section resting on the ocean floor at 12,500 feet

The stern section, heavily damaged from the impact with the ocean floor