The Above Top Secret Underground Facility / Small City?

Last night, I only remember parts of my last dream, but the dream fragments are a little scattered.

So I will try to put them together the best I can.

I do not remember the beginning or middle of the dream, I just remember being in some multi-story building with no windows and private security guards scattered around the building; that reminded me of Multi-National United (MNU) from the film District 9.