The Wall

The Wall,
Is it small?
Is it tall?
Are there two?
A sandwich of walls.
And what is in the sandwich?
Is it grass?
Or a bush?
The latter is the truth.
The top one is older
But I know not by how long.
The top is a house.
The bottom one is just a wall.
That's all.
Is the music link what you expect?
Yes, and no.
"Always expect the unexpected."
As the Spanish Inquisition, Monty Python Style , used to say.