Great Wall of China is undoubtedly one of the great wonders of the World. The greatest sights in the World is visited by around 10 million people all across the World in a year. According to the records, the wall of China is 6000 kilometers and extends over 15 provinces. It is said that this magnificent creation was built, rebuilt and extended by many Chinese dynasties over 2000 years. It is also said that many people died while constructing this great site.