Tackle a challenge worthy of a master puzzler and help put together one of the world’s largest jigsaw puzzles—more than 14 feet long and made from 24,000 pieces! Use a rendition of the massive puzzle to play an I Spy game. Also solve brain teasers and make your own paper puzzle to take home. Check out unusual puzzles—3-D, glow-in-the-dark, and one so small you need tweezers to place the pieces.