Author: Gene Sloan, USA TODAY

Carnival on Tuesday announced it would offer sailingsfrom San Francisco starting in 2020 – something it has never done in its 46-year history.

From the debut of the biggest cruise ship ever built to the unveiling of innovative new ship features and itineraries, it was a year of milestones in the cruise world.

Cruise giant Carnival plans to build a roller coaster onto a new vessel it will unveil in 2020, something that has never been attempted before.

The New York City area soon will be home to one of the world’s biggest cruise ships with the arrival of Royal Caribbean’s giant Oasis of the Seas.

The first new Celebrity Cruises ship in six years, Celebrity Edge, will be christened Tuesday in Florida by Nobel Prize-winner Malala Yousafzai.

The first new Celebrity Cruises ship in six years, Celebrity Edge, on Saturday kicks off its first sailing with paying passengers.

The first new Celebrity Cruises ship in six years, Celebrity Edge, boasts an unusual new feature called the Magic Carpet that offers stunning views.

Celebrity Cruises this week is unveiling an innovative new design for the standard balcony cabin that features a wall of glass.