ostrich fetus
Usualy Brick or Stone walls are built in china.
It means internal walls in a building.
It was important for the mission walls to be built on rocks because so the walls could be stable.
inside walls
1800bc
rockes
Levee
walls
beacuse they built walls and they thought it was complet!
Walls to keep out water are called dams and levees.
Emperor Nasi Goreng
They built strong thick walls around their cites for protection.