Great Wall of China
Great Wall of China is one of the greatest wonders of the world. UNESCO enlisted the Great Wall as a world heritage site in 1987. It stretches 13,170 miles from east to west. Its construction period was for about 2,000 years and the building was all done from the local materials and resources. The Great Wall was originally built as a defensive fort. But, it is now one of the best tourist attraction of Asia. The Mutianyu section is the most popular section among foreign travellers.