Great Wall of China The Great Wall is one of the seven wonders of the world. It runs in sections over a very long distance across China. The wall is also referred to as ‘Long Wall’ as it is over 21,196 km/13,171 miles long. It was built with stones, bricks and tiles, earth as well as of wooden material. The wall was completed in 1644, but it took more than 2,000 years to build. #Architecture