Big Show joins Nickelodeon's Worldwide Day of Play Celebration.
Washington D.C. hosts the Nickelodeon event on the Ellipse.
On Sept. 24, Nickelodeon's network went dark to inspire kids to go out and play.
NBA star LeBron James meets the World's Largest Athlete.
The daylong event is dedicated to healthy lifestyles and active play.
Big Time Rush performs at the Worldwide Day of Play Celebration.
Thousands of families gather at the free event in Washington D.C.
Big Show meets volleyball star Gabrielle Reece and one of the Nick stars.
Big Show is grouped with a team of Nickelodeon stars to coach them through a big obstacle course.
The Superstar talks about his experience at the Worldwide Day of Play Celebration.
