This oceanic voyage celebrates the launch of the Cunard line's &NFi;Queen Mary 2&NFi_; -- the largest ocean liner in the world at the time the program was filmed -- 70 years after the company launched its fabled &NFi;Queen Mary&NFi_;. Sailing from Fort Lauderdale, Fla., to Rio de Janeiro for the annual Carnival, this cruise duplicates the historic path of the flagship &NFi;S.S. Normandie&NFi_;, which transported a boatload of rich and famous revelers to the same spot in 1939.