The walls of the canyon still towered over him.

A green wall of vegetation towered in the middle distance.

High walls towered at either side of a great stone arch.

A wall of dark clouds towered to the west.

And although the wall itself towered hundreds of feet above them, the door was very small.

Now the canyon narrowed and the rocky walls towered above him.

A wall of murk towered from earth to high heaven.

The wall behind them towered to infinity, or at least past the height that the eyes of men could see.

As I walked on toward the gates the front wall towered above me.

To one side, a wall towered kilometers over their heads.