Wall Of China

The Great Wall is one of the greatest wonders of the world. It is winds up and down across deserts, grasslands, mountains and plateaus, stretching approximately 8,851.8 kilometres from east to west of China. Several part of the walls had been built in the 5th century BC. Some of the sections are now in ruins or have disappeared. The great wall was listed as a World Heritage by UNESCO in 1987. The Wall we see today was mostly built during the Ming Dynasty. The Wall has served as a monument of the Chinese nation throughout history.

See the Wall from the Moon

The Wall is visible from low Earth orbit (an altitude of as little as 100 miles). NASA said that it is barely visible, and only under nearly perfect conditions; it is no more conspicuous than many other man-made objects. Some of them said it is impossible to see the wall with the naked eye, even from low orbit.

The Great Wall of China

In October 2003, "The Great Wall" photographed from Space. Now, various factors proved the wall can be seen from the space with naked eye.