The Powerball jackpot for Saturday night's drawing has climbed to $600 million, the largest in that game's history and closing in on the largest lottery jackpot of all time. Here's a look at the top 10 world record lottery jackpots.

1. $656.0 million, Mega Millions, March 30, 2012 (3 tickets from Kansas, Illinois and Maryland)

2. Estimated $600 million, Powerball, (drawing scheduled for Saturday, May 18; jackpot could grow)

3. $587.5 million, Powerball, Nov. 28, 2012 (2 tickets from Arizona and Missouri)

4. $390.0 million, Mega Millions, March 6, 2007 (2 tickets from Georgia and New Jersey)

5. $380.0 million, Mega Millions, Jan. 4, 2011 (2 tickets from Idaho and Washington)

6. $365.0 million, Powerball, Feb. 18, 2006 (1 ticket from Nebraska)

7. $363.0 million, The Big Game, May 9, 2000 (2 tickets from Illinois and Michigan)

8. $340.0 million, Powerball, Oct. 19, 2005 (1 ticket from Oregon)

9. $338.3 million, Powerball, March 23, 2013 (1 ticket from New Jersey)

10. $337.0 million, Powerball, Aug. 15, 2012 (1 ticket from Michigan)