Final answer:
The bay windows on the 3rd floor of the Old Minnehaha County Jail are oriel windows that project out over the street. They are known as Chicago windows and provide both light-gathering and natural ventilation functions.
Step-by-step explanation:
The bay windows on the 3rd floor of the Old Minnehaha County Jail are different from the windows on the other floors because they are oriel windows that project out over the street. They are also known as Chicago windows, which are three-part windows consisting of a large fixed center panel flanked by two smaller double-hung sash windows. These windows combine both light-gathering and natural ventilation functions.