My boyfriend just got through the fairly recent Eric Schlosser book, "Command and Control" and has been fascinated by nuclear weaponry and the Cold War. It was a great surprise to learn that we could tour, and see with our own eyes, a Titan missile, hidden in the desert south of Tucson. The decommissioned missile takes up eight stories of a silo in Sahuarita. The docents, at least the day we toured, are ex-military men including one gentleman who actually worked there "in the day." It was fantastic to hear his perspective on this moment in our history, to learn about all of the checklists and daily routines of those assigned to keep it "ready to launch" at any moment and to see this enormous weapon with my own eyes. You may have to book ahead as the tours are held on a limited basis.