I've actually been to Green Bank (twice) (Score 1)

Not only is it a beautiful drive to get there(radio telescopes are located in the boonies for a reason) but the actual experience of coming suddenly into a valley covered with these instruments is pretty awesome in and of itself. The tour of the facility is interesting (you have to take a diesel bus---spark plugs do bad things to radio telescope reception) and the "experience of science in action" permeates the place. If you live anywhere within a day's drive of Green Bank, I'd highly recommend planning a trip. You will remember it for a long time.