When I was 18 years old, I had an opportunity to visit the Great Wall with my .
            
 That was my best vacation in my life, because my father, my mother, my sister .
            
and I spent three days together visiting one of the most beautiful places in the world. .
            
There are several reasons why it was my best vacation. First of all, I like visiting .
            
historic place and the Great Wall is a historic site. The construction of the Wall  first began .
            
during the Warring States period about 2,500 years ago. Some kingdoms built huge walls .
            
hoping to protect their territories. When Qin Shihuang or the First Emperor unified China .
            
in 221 B.C., he decided to have the various sections of the walls linked up and also .
            
extended. From that we got the Great Wall. The Qin Great Wall hasnt gotten much left .
            
today. In the subsequent dynasties, the Great Wall was rebuilt many times. The last .
            
massive rebuilding of the Great Wall was in Ming Dynasty. When I climbed the Great .
            
Wall and I touched one of the stones, which built the wall, and I felt that I were in that .
            
time when people built the wall.
            
Secondly, I like to challenge human limit to climb. The Great Wall meanders from .
            
east Shanhaiguan to west Jiayuguan for about 6,000 kilometers or 12,000 li, and that's .
            
why we call it in Chinese "Wan Li Chang Cheng", which literally means "Ten Thousand .
            
Li Long Wall". That's why the Great Wall is a perfect place to climb for me.
            
Moreover, the Great Wall has beautiful view. My sister and I climbed toward the .
            
highest spot of the Great Wall. It was very steep there and the surface was a little slippery. .
            
We climbed very carefully and finally we reach the highest spot of the Great Wall, it was .
            
a fire tower. On the top of the fire towers we can see green mountains roll over one anther. .
            
Lush trees dot the slopes. A gentle breeze caresses us, and the Great Wall winds its way .
            
like a giant serpent. That is such a lovely place!.
            
 The last reason why I like visiting the Great Wall is about an affecting story.