Mental Floss: While some children's books have more or less faded into obscurity, others have become such an ingrained part of our cultural consciousness that it's hard to imagine they could ever stop being popular—like A.A. Milne's Winnie-the-Pooh, for example, or C.S. Lewis's The Lion, the Witch and the Wardrobe.
It's no surprise that both of those books made the top 10 on a new list of the top 100 greatest children's books of all time, compiled by BBC Culture. But they didn't crack the top five, which were, in order, Maurice Sendak's Where the Wild Things Are, Lewis Carroll's Alice's Adventures in Wonderland, Astrid Lundgren's Pippi Longstocking, Antoine de Saint-Exupéry's The Little Prince, and J.R.R. Tolkien's The Hobbit.