A guard tower must have sufficient human legs to stand post.

tower guard takes a book to educate himself at night by moonlight

I needed two hands at the guard tower, but he forsook me.

uses a wooden comb for a comb-over that makes a bridge from one side of his head to the other

Picture a large set of staples covering a hole in the Great Wall.

the horizontal line monument

China won’t collapse until the Great Wall turns to soil

Picture the ultimate summit meeting: on the Great Wall.

They’ve just now come over the ridge, draw your swords!

guard tower built over a stream, so it is a bridge

The man insists that one room, his man cave, will not be complete until it has a replica of the crumbling Great Wall on one side.

Water flows under the bridge.