My nursing training took place in one of those reliable, old-fashioned
hospitals that still exist in small towns: squat and square with linoleum-lined
hallways and front doors that push open and shut. There were seven floors
stacked precisely on top of each other in that hospital; each had a north,
south, east, and west wing with a nurses' station centered inside the rectangle
of patient rooms. None of the staff there could glimpse the outside world,
so they never knew if it was night or day.
Dellasega C. Healing in Spaces. JAMA. 2004;292(7):780. doi:10.1001/jama.292.7.780