At the top of the stairs she turned toward the observation window.

To get a better view, he moved around to one of the other observation windows.

Then he turned and looked out the observation window at the stars.

The original observation window was modified and two more added.

Then, outside the wide observation windows, something moved into his field of view.

The room was in darkness, the only light coming from the observation window.

They couldn't even see the big observation windows at the forward part of the hull.

The President turned back to look out through the observation windows.

He was looking up at the sky through the observation window.

She could read a note if he held it up to the observation window.