Discover the stories of explorers--the most ancient to the modern day--from the deepest depths of the ocean to the highest mountains in the world. In this book you'll find true stories about Marco Polo's Silk Road, Edmund Hillary and Tenzing Norgay's conquest of Everest, and Buzz Aldrin and Neil Armstrong's trip to the moon, and much more. Learn all about the explorers who discovered the unknown and made the world the place we know today. Perfect for 5- to 7-year-olds beginning to read fluently with support, Level 2 titles contain carefully selected photographic images to complement the text, providing strong visual clues to build vocabulary and confidence. Additional information spreads are full of extra fun facts, developing the topics through a range of nonfiction presentation styles such as diagrams and activities. Series Overview: Trusted by parents, teachers, and librarians, and loved by kids, DK's leveled reading series is now revised and updated. With new jackets and brand-new nonfiction narrative content on the topics kids love, each book is written and reviewed by literacy experts and contains a glossary and index, making them the perfect choice for helping develop strong reading habits for kids ages 3-11.