Due to the fact that many dynasties helped in the building of the wall and many sections are located in isolated mountains, grasslands or deserts; the investigation of the size of the wall was difficult. However on April 18, 2009, after a full investigation it was announced that the Great Wall is 5,500 miles long and wall in Beijing measures over 342 miles long (Waldron). The Great Wall is no doubt the largest manmade creation in the world. According to Waldron, the wall passes 156 countries in ten cities or provinces including Liaoning, Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi, Gansu and Qinghai. The wall contains 723 beacon towers, 7,062 lookout towers, 3,357 wall platforms and 1,026 other ruins
Due to the fact that many dynasties helped in the building of the wall and many sections are located in isolated mountains, grasslands or deserts; the investigation of the size of the wall was difficult. However on April 18, 2009, after a full investigation it was announced that the Great Wall is 5,500 miles long and wall in Beijing measures over 342 miles long (Waldron). The Great Wall is no doubt the largest manmade creation in the world. According to Waldron, the wall passes 156 countries in ten cities or provinces including Liaoning, Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi, Gansu and Qinghai. The wall contains 723 beacon towers, 7,062 lookout towers, 3,357 wall platforms and 1,026 other ruins