Discover the greatest wonders the ancient world has to offer, from Stonehenge to Angkor Wat and from Machu Picchu to the Great Wall of China. Get up close to their unique features and marvel at their breathtaking dimensions. What threats and challenges to these special phenomena face, and what is being done to ensure their survival for future generations to enjoy? Perfect for readers 9 and up. Features: Khazneh, Petra; Nazca Lines; Stonehenge; Angkor Wat; Teotihuacan; The Colosseum; The Great Wall of China; Machu Picchu; Ancient Egyptian Pyramids; Easter Island; The Alhambra; The Terracotta Army amongst others.