
The Great Wall of China ‘zig-zags’ central-east Asia and it is an incredible structure. It took over a thousand years to build and is over 1500 miles in length. It is the longest, oldest, most time consuming construction project ever attempted, in history. It is said that the Great Wall can be seen from Earth orbit, although there is some dispute regarding this. It is only when cameras are used, that sections of the wall can be differentiated...