Great Walls

Humans have built walls for protection against invaders since civilisation began thousands of years ago. Visit these links about three great walls: Hadrian's Wall, the Great Wall of China and the Great Green Wall.

For which wall or walls are the statements true? Hadrian's Wall, The Great Wall of China and/or The Great Green Wall?

1. It took about two thousand years to build.
2. Soldiers built this wall.
3. The aim was to prevent invasions from the north.
4. The idea for the wall goes over more than one country.
5. The path of the wall goes over more than one country.
6. The aim of the wall is environmental.
7. It is guarded for over 200 years.
8. The path of the wall is from coast to coast.
9. The wall is a World Heritage Site.

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