This windowless multi-story bunker is the home to the 21st Air Division's command bunker as well as the 621st Contingency Response Wing.
This is a typical NORAD-style building.
Google Maps mistakenly says there is a Godfather's Pizza location here, but I assure you this is not the case.
http://en.wikipedia.org/wiki/621st_Air_Mobility_Operations_Group
http://en.wikipedia.org/wiki/21st_Air_Division