Size

• The Great Wall of China is more than three stories tall in some places. Archaeologists are learning that the wall is bigger than once thought. They now believe it is more than 5,500 miles long.
  
  

History

• The wall was originally seven walls made by seven kingdoms. Later, rulers joined the smaller walls together and made the wall longer.
  
  

Materials

• At first, the Great Wall was made from rocks, earth and sticks. Later on, the Chinese had better technology and started using bricks to build the wall.
  
  

Shape

• The Great Wall curves across the landscape of China like a dragon, a popular Chinese mythical creature.
  
  

Space

• Although some people say the Great Wall can be seen from the moon, astronauts have told us this isn't true. They have said you can see the Great Wall from Earth's orbit, however.