Royal Caribbean International's new Harmony of the Seas has now launched as the largest cruise ship in the world. Watch as the entertainment cast prepares for the stage production show of Grease onboard.

Royal Caribbean International's new Harmony of the Seas has now launched as the largest cruise ship in the world. Check out the massive ship as the crew begins to move in during its early celebrations.

Royal Caribbean International's new Harmony of the Seas has now launched as the largest cruise ship in the world. Check out a quick time-lapse of the ship from STX Europe shipyard steel cutting in France to its arrival in Southampton.

Watch our review and tour of the Viking Sea from Viking Ocean Cruises including accommodations: Penthouse Veranda, Penthouse Junior Suite, Explorer Suite and Owner's Suite; activities: The Viking Living Room, art collection, Viking Heritage exhibit, digital touchscreen and traditional games, shopping, Liv Nordic Spa & Fitness center, pool deck, sports deck, shuffleboard, lawn bowling, miniature golf, infinity pool, Explorers' Lounge and library; dining: The Restaurant, Viking Bar, Manfredi's Italian Restaurant, The Chef's Table, room service, Pool Grill, Pool Bar, World Cafe buffet, Aquavit Terrace, Wintergarden, Mamsen's and The Kitchen Table; and entertainment: pool screen, cinemas, The Theater, Torshavn, live music and the destination.