"The Great Wall of China was built to stop intruders from invading the country. Construction began more than 2,000 years ago. The wall took more than 1,000 years to build. Find out more in [this book]"--Provided by publisher.
Explores the history, the people, and the science behind the construction of the Great Wall of China. Includes online content that contains weblinks, audio and video clips, activities, and other features.