"The ultimate search-and-find book with double the fun! Join Waldo and his friends for a day at the museum. Hidden among the amazing artifacts and exciting exhibitions are more than five hundred differences to find! Wow! The spot-the-difference challenge stars now! Have you found Waldo yet?"--Back cover. "Maybe youre good at spotting Waldo. But can you spot the difference? Head to the museum, where even the sharpest eyes are seeing double. Waldo...