The RMS Queen Mary 2 (QM2) is a Cunard Line ocean liner named after the earlier Cunard liner Queen Mary, which was in turn named after Mary of Teck. At the time of her construction in 2003, the QM2 was the longest, widest and tallest passenger ship ever built, and at 148,528 gross tons, was also the largest. She lost that last distinction to Royal Caribbean International's 154,407 gross ton Freedom of the Seas in April 2006, but QM2 remains the largest ocean liner (as opposed to cruise ship) ever built, and her height, length, and waterline breadth are unsurpassed by any other passenger ship. QM2's luxuries include 15 restaurants and bars, five swimming pools, a casino, a ballroom, a theatre, and a planetarium.

General Characteristics
Tonnage: 148,528 gross tons
Displacement: 76,000 tonnes (approx)
Length: 345 m (1,132 ft)
Beam: 41 m (135 ft) waterline, 45 m (147.5 ft) extreme (bridge wings)
Draft: 10 m (32 ft 10 in)
Height: 72 m (236.2 ft) keel to funnel (includes 17 passenger decks)
Power: 117 MW (157,000 horsepower) CODAG
Propulsion: Four 21.5 MW electric propulsor pods: 2 fixed and 2 azimuthing
Speed: approximately 30 knots (56 km/h)
Complement: 2,620 passengers, 1,253 officers and crew
Cost: UK £460 million (approx €700 million, US $900 million)