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, the Queen Consort of George V. With 15 restaurants and bars, 5 pools, a casino, a ballroom, a theater, and a planetarium, the QM2 is the largest ocean liner in the world, and, at the time of its construction, was the longest, widest, and tallest passenger ship ever built. What ship challenged that distinction in 2006? Discuss
Source: The Free Dictionary