The Great Wall of China, stretching over 20,000 km (13,000 miles) and built over centuries, never effectively prevented invaders from entering China.
Great Wall of China The Great Wall of China is an ancient series of walls and fortifications, totaling more than 13,000 miles in length, located in northern China. Perhaps the most recognizable symbol of China and its long and vivid history, the Great Wall was originally conceived by Emperor Qin Shi Huang in the third […]