I thought it was going to be more of a pomp and circumstance, office building, museum kind of place. It is all that but so much more. To get in, I really had to show a driver's license from which a great deal of info was written. Then I was asked why I was driving a car with Virginia license plates since I was from Maine. The guard was very polite, yet VERY serious.
Civilians can only park in blue or white marked spaces.
Naturally, I could only find red, yellow and green marked ones. I'm glad I went into this with an open mind and acceptence of this as a fact finding mission. I came away feeling like a got a great deal accomplished and got really excited about some findings. I can't wait to go back again when I have more time. The building is being renovated.