“Dear PoP,

I was walking by Dogs by Day the other day and there is a brick building to the right of Dogs by Day. I think the address is 1728th 14th ST NW, but I could be off +-2. The building hardly has any windows, and the few windows that it does have are long but narrow. There is also a security camera out front. There is no identification of a business or even address. Do you have any idea of what this building is? Looks kind of mysterious.”

Great question! Anyone have a clue?