When Grand Princess launched in 1998, it was the largest and most expensive cruise ship ever built. Some 13 years later, the line has pumped big bucks into the ship during a massive springtime makeover. To celebrate its rebirth, Cruise Critic is running a 1998-themed trivia contest. The prize: a seven-night Caribbean cruise for two in a balcony cabin on Grand Princess. (U.K. resident? Find your contest here.)

Here's how it works:

Until May 19, Cruise Critic will ask a daily trivia question (weekends included). New questions will go up at midnight EDT. Read full rules.

Once a new question is posted, you have 24 hours to answer that question. The more questions you get right, the more chances you'll have to win the seven-night cruise -- up to 15 chances. Come back daily to improve your odds! Missed a question? Don't worry -- you only need to answer one question correctly to enter.