The Great Wall of China is one of the world's most amazing wonders and the longest human-made structure ever built. Constructed more than 2,000 years ago, the ancient wonder is a celebration of China's culture, especially that of the Ming Dynasty. This elementary-level introduction, filled with vibrant photos and factual text, examines the structure and how it was constructed. The wall's significance in history and why it was built are also included. A Wonder Spotlight features the wall section called "Old Dragon's Head." Captions, on-page definitions, additional resources, and an index support young readers.