FYI There is one of these buildings in St. Joseph MO. It is 15-22 stories tall all concrete and brick, with those skinny 4ft. tall windows. It has giant HVAC units in the roof. only an address on the building, no names or plaques on it. the lobby is very odd. It's 15ft x 25ft or so. when you go in there are two 4ft x 8ft doors one on each wall with dead bolt keyed locks on them. Guessing elevators are behind doors. one counter straight across room from entry door. one person at counter, it's an opening in the wall, no visible door to get to it. My first thought when i saw the building was it was exactly the kind of building that held massive servers or communication equipment of some kind ?