How hot was the big bang? Which animal sleeps the longest? What causes sound to echo? How do big ships manage to stay afloat?From the Universe to Ancient Greece and everywhere in between! Explore through hundreds of mind-blowing images and exciting facts about the world we know and beyond! This fun-filled book is packed with facts and information about absolutely everything. This would make the perfect gift for kids that are curious to learn more about the world we live in.