In November, Royal Caribbean will take delivery of a true sea monster. Now in its final phase of construction, the Oasis of the Seas will be the biggest (longest, tallest, widest, heaviest) passenger ship ever built—and the most expensive. It will dwarf Nimitz-class aircraft carriers and cast shadows dockside atop 20-story buildings. A crew of 2,165 will tend the expectations of up to 6,296 passengers.