What the heck is an opstical?
the making of the great wall china
they came up with the great wall of China by finding ways to protect them from intruders.
the making of the great wall china
a lot
if you want to build the great wall of china the you just build it like your using paper but do it wiyh clay!!
over 3000 people died in the process of building the great wall of china
The Great Wall of China is on the continent of Asia.
To keep away northern invaders
The Great Wall is in China.
The Great Wall is in China.
The great wall is located in China.
Great Wall of China.