[dougbright]

If you're interested in getting a similar experience to Adam check out the FAA seminar "Operation Rain Check". These scheduled events occur around the country and typically include a tour of ARTCC, TRACON, and/or tower facilities. You need to be a pilot or a guest of one but it's a tremendously interesting experience if you can swing it.

Here's a description of a seminar from a couple of years ago in NY: http://www.faasafety.gov/SPANS/event_details.aspx?eid=43755

Sadly, the FAA doesn't have a great way to find out about these things unless you're signed up for email notifications but if this is the sort of thing you're interested in you're probably industrious enough to figure it out.