National Geographic Kids set a world record in 2008 with 10,512 pairs of shoes tied together. (THE WASHINGTON POST)
Get ready to run — and then send in your shoes

How many shoes tied together would make the world’s longest shoe chain? The answer: 24,962. But National Geographic Kids aims to break that record, and the magazine is looking for help.

People sent 10,512 pairs of athletic shoes to National Geographic Kids in 2008, when the magazine set a world record. But others have run away with the record since then, and NG Kids is trying to get 12,500 pairs this year to reclaim the record. The shoes will be sent to Nike Reuse-a-Shoe, which recycles them to make basketball courts and playgrounds.

You can drop the shoes off at National Geographic’s headquarters at 1145 17th Street NW in Washington. Look for a collection bin next to the main reception desk. Or send them to NG KIDS/Shoes, P.O. Box 97056, Washington, D.C., 20090. The deadline is November 9.

But before you hand over your athletic shoes, you might use them to help set another record. NG Kids wants to have the most people running or walking 100 meters within 24 hours, from noon on October 26 to noon on October 27. Anyone entered in the Marine Corps Marathon Healthy Kids Fun Run on October 27 will automatically participate in the record-setting attempt. But you and your friends can set up your own event. Your parents can get the rules on how to make it official at Documentation from the run must be postmarked by November 2.

READ: How Guinness verifies records

— Christina Barron