Cut into the wall was a rectangular opening that looked like the door on an elephant house.
A small rectangular opening in the door was the only source of daylight.
Glenn leaned in, then out of the black rectangular opening.
He finally found it, along with the framework around the rectangular opening.
The tower has simple rectangular openings in the north, east and south walls.
Beyond the rectangular opening, Philip could see nothing but darkness.
That could be a nasty fall if you didn't watch yourself, particularly since the stairs started down from the far end of the rectangular opening.
The spaceman turned around and saw a rectangular opening in the wall, through which he had probably come.
Until he saw the rectangular opening in the wall he'd feared that there was no way out of his nightmare after all.
I did, running up a wide ramp that went through a large rectangular opening.