The world doesn't end where the sea meets the sky. Lift the flaps to explore how big it really is, what shape it is and its place in the wider universe. Playful adventures include. - climbing a big hill to admire the view - sailing out to sea, to see what you can see - journeying around the world to end up where you started - imagining how an alien would address a letter to Earth With beautiful illustrations, thoughtful questions and fascinating answers, this book is perfect for sparking young kids' curiosity.