The RMS Queen Mary 2 is a Cunard Line ocean liner named after the earlier Cunard liner Queen Mary, which was in turn named after Mary of Teck, the Queen Consort of George V. It does not commemorate the reign of Queen Mary II. At the time of her construction in 2003 by the Chantiers de l'Atlantique, the Queen Mary 2 was the longest, widest and tallest passenger ship ever built, and at gross tonnage (GT) of 148,528 tons, was also the largest. She lost the gross tonnage distinction to Royal Caribbean International's 154,407 GT Freedom of the Seas in April 2006,but Queen Mary 2 remains the largest ocean liner ever built, and her width, length, and waterline breadth are unsurpassed by any other passenger ship.
Moreover, the Queen Mary 2 displaces approximately 76,000 tons; the Royal Caribbean Freedom ships displace about 64,000 tons. The Queen Mary 2 was the first major ocean liner built since the Queen Elizabeth 2 in 1969.Queen Mary 2's facilities include 15 restaurants and bars, five swimming pools, a casino, a ballroom, a theatre, and a planetarium.
The Queen Mary 2 is the current Cunard flagship and makes regular transatlantic crossings. The ship was constructed to complement the RMS Queen Elizabeth 2, the Cunard flagship from 1969 to 2004—replacing it on the transatlantic route. The first RMS Queen Mary sailed the Atlantic from 1936 to 1967. Queen Mary 2 had the Royal Mail Ship (RMS) title conferred on her, as a gesture to Cunard's history, by Royal Mail when she entered service in 2004 on the Southampton to New York route.