The famous wall that runs through China is the Great Wall of China. This ancient fortification was constructed and reconstructed between the 7th century BC and the 16th century to protect against invasions and raids from nomadic groups. Spanning thousands of miles, the wall features various constructions, including earth, wood, bricks, and stone, tailored to the geography of the regions it traverses. The Great Wall symbolizes China's historical strength and cultural heritage. Today, it is recognized as a UNESCO World Heritage site and is one of the most iconic landmarks attracting millions of tourists who visit to appreciate its architectural grandeur and historical significance.