It is made out of stones and wood.
Stone, brick, tamped earth, wood, and other materials
stone and wood
As of now (2008) technology it is not practical to make materials that are sufficiently strong and light to build an Earth based space elevator. This is because the weight of conventional materials needed to construct such a structure would be far too great.
The great wall of china was built so that the people of Mongolia cannot attack china from that particular side
limestone
It is crenel stone.
Not really sure other than addition
You can construct a great sentence.
Sandstone and other rocks that were found in the region.
Mud, dirt, straw, grass, stone, branches and stones.
It was made of bricks but before bricks it was all stones and wood
Because the Chinese warriors were strong to protect the wall