We are not talking small, it is protected by a moat which runs for 5 km, the base of the structure being about 850m by 1000m, it is calculated to have taken more than 30 years to build. This seems rather speedy when you see the size of the thing. The Great Wall of China has been credited as the only man made structure you can see from space. Here in the UK we make a bit of a fuss about Hadrian's Wall which extends for about 71 miles, in places is 20 foot high and 8 foot wide but in others no more than not much. So you have to wonder how much the Chinese wanted to avoid contact with the Tartars as the wall they built extended for about 1500 miles, was abot 20 foot thick at the base and about 12 foot high.
Guard posts every couple of hundred feet made sure people stayed the right side.
From something rather utilitarian in design, a wall is a wall afterall to something which transcends its function. The Taj Mahal. This is something you have to be impressed by, it is a true wonder, built in the first half of the 17 th century it is composed of white marble. I read somewhere there were plans to put one opposite of black marble. Probably best that did not happen as potentially nobody would have done another thing choosing instead just to stare at those two buildings.