For example: The man can't see the wall in front of him.

I had not seen the wall, but it was there, just a few feet ahead of us.

I could almost see the wall come down as she realized we weren't alone.

It was too dark to see the walls on either side.

They saw other walls, but none got in their way.

"Yesterday you could have seen the western wall from here."

Some sites address the question of whether or not you can see the wall from space.

I saw the broken wall at the edge of the road.

He could now see the walls of the library outside.

Ahead, she could see the dark wall of her destination.