Celebrity Millennium® is redefining the cruise experience with stunning upgrades and groundbreaking recognition as one of the first cruise ships to earn a Four-Star Rating from Forbes Travel Guide. With newly added staterooms, enhanced design concepts, and state-of-the-art technology throughout the ship, the transformation is remarkable. Highlights include The Retreat®, an exclusive luxury experience featuring The Retreat Sundeck and The Retreat Lounge, paired with the renowned Luminae restaurant for an unforgettable journey.