The world is full of mind-blowing marvels and this book uncovers our planet's most peculiar phenomena, puzzles from the past, eye-opening inventions, astonishing animals, and so much more! Did you know that caterpillars liquefy when they turn into butterflies? That humans shed 8 pounds of skin every year? That there's a funky forest in Poland where all the trees are mysteriously crooked? That space smells like burnt plastic? Our world is filled with strange, bizarre, and weird realities. But what do they mean? WHY are they important? And what exactly is the secret behind them? National Geographic Kids presents a jam-packed new series perfect for fans of Weird but True and 5,000 Awesome Facts. With cool, action-packed photos, tons of awesome information, and filled to the brim with the weirdest facts ever – this book takes readers behind the scenes of the world of the truly bizarre, to reveal the truth behind our planet's wildest and wackiest. Discover the mysteries behind the Sphinx of ancient Egypt, learn why the beaches of the Maldives glow bright blue, how tornadoes are so powerful, and so much more! And with Q&As with in-the-field experts, fantastic infographics, exciting stories, and more, this book presents a fresh way of looking at our bizarre planet. So, get ready to experience our not-so-secret world.