The 'Icon of the Seas,' set to embark on its maiden journey on January 27, is the world's largest cruise ship, surpassing the 'Wonder of the Seas.' Costing nearly $2 billion, the ship has 40 restaurants, bars, and lounges, seven pools, six waterslides, and a 55-foot waterfall. Tthe ship can accommodate 7,600 passengers served by a 2,350-member crew.