This former factory building, now used as
offices and apartments. Its only visible from the back of a parking lot used by a hardware store and auto parts store that I frequent. I had probably looked at it dozens of times before I paid attention to it, now every time I stop and take the time admire it.
Mod Pac by
bpawlik, on Flickr
EDITED following some investigation - this building is actually part of the former American Radiator Company (later American Standard) Institute for Thermal Research, now converted to loft apartments (ARCO Lofts). Per city records, it says the complex dates to 1911, but this part of the building looks to be older, based on the style and the number of chimneys. I found a 1901 map that shows American Radiator at his location, and earlier maps (1893) show a building roughly here, but without enough info to confirm its the same. So, it looks to me like this building dates somewhere in the 1890s, with the 1911 addition attached to the street
side front of the building (it looks like a school, and not as interesting to me as the back).