Preservation Pop Quiz: Buena Vista, GA edition

It’s been a while since there’s been a Preservation Pop Quiz around these parts. This one is from my travels in Georgia. A group of us attended a local art opening in Buena Vista, GA. The opening took place in a historic building, though the drop ceiling and other modifications hid the original details of the building. But, like the preservationist that I am, I walked around the perimeter of the big room and looked up, staring at a particular corner for a while. Why was this door here and how did it function? I do have the answer to this one, but tell me your impressions first!

First up: the exterior of the building in Buena Vista, GA.

First up: the exterior of the building in Buena Vista, GA.

Storefront of the building.

Storefront of the building.

Exterior of the particular corner that perplexed me.

Exterior of the particular corner that perplexed me.

Interior space for the art opening. Note the fluorescent lights and drop ceiling.

Interior space for the art opening. Note the fluorescent lights and drop ceiling. Corner in question is on the right.

The interior corner, a door.

The interior corner, a door.

Bottom of the door.

Bottom of the door.

Looking up above the door.

Looking up above the door.

Looking up in the same area.

Looking up in the same area.

You can see the door, then the transom, then the ceiling.

You can see the door, then the transom, then the ceiling.

And another interesting feature of this building. Vents beneath the sidewalk.

And another interesting feature of this building. Vents beneath the sidewalk. (Unrelated to the quiz question.)

What do you think?