The Great Wall
Giant construction of the ancient world, the Great Wall measuring 6400 kilometers long, is provided from place to place with forts looking tall rectangular towers of defense, has a height of 8 meters and a width of 6.5 meters, and meritandu status of the longest wall of the Earth. To protect the state, China's first emperor, Qin (221-210 BC) commands to be linked together fortifications built by his predecessors. It will submit both east and west, a total length of about 5000 km,...