clearstory
/ˈklɪrˌstɔri/
noun
- An upper part of a wall in a church or other large building that contains windows, allowing light to enter the interior.
- Architects designed the clearstory to bring natural light into the center of the hall.
- The clearstory of the cathedral was filled with beautiful stained glass.
- Sunlight streamed through the clearstory windows, illuminating the ancient stone floor.