The Great Wall of China (not Egyptian but often confused in architectural discussions)

The Great Wall of China is a monumental series of fortifications built over centuries to protect Chinese states from invasions. Stretching approximately 13,000 miles, it consists of walls, watchtowers, and defensive structures made from brick, tamped earth, stone, and wood. Strategically located along mountain ridges and plains, it served as a physical barrier, a communication route, and a symbol of Chinese strength. Contrary to some misconceptions, it is not a single continuous wall but a collection of segments constructed by different dynasties, reflecting advanced engineering and centralized effort over many centuries.