#21 – The Great Wall – China
The Great Wall of China is one of the longest structures in the world entirely built by humans, without any machinery or anything else. The Great Wall of China can boast being the longest fortification wall in the world, while the second longest wall in the world is Kumbhalgarh Wall, which is located in India.
The Great Wall of China, a protection wall 21,196 km long, is one of those structures that make people’s jaw drop. Whenever you find yourself in China, be sure to take a tour of this majestically beautiful defensive wall that stood proudly for several centuries to protect the Chinese nation.