Answer: clerestories

AnswerCrossword Clue
clerestoriesThe upper part of the nave, choir, and transepts of a large church, containing a series of windows. It is clear of the roofs of the aisles and admits light to the central parts of the building
clerestoriesCLERESTORY, the upper storey of a church; windows near the roof of a building also CLEARSTORY
clerestoriesA raised section of roof running down the center of a railroad car, with small windows or ventilators
clerestoriesSuch a series of windows in a church or similar windows in another building