Every year about four million people visit the Great Wall of China. In China the Great Wall is a massive tourist attraction. It stretches over 3,948 miles, which is the longest structure ever to be built by man. It took people 200 years to build the Wall and it is known that around 400,000 people died while building it. Some of the people that died while working on it are buried in the wall. The original reason why they built the Great Wall was for protection. People would use smoke signals, lanterns, and beacon fire when an enemy was about to attack. Sadly, even with all of these signals and messages they still never succeeded in keeping them out. During the years 1368-1644 AD, they decided to rebuild the wall, in order to make it stronger
