If you are visiting Tucson (Arizona), the Titan II missile museum at Green Valley is a must. It is situated about 25 miles south of Tucson along the I-19 highway (exit 69) and is an easy drive. it is the only Titan missile site left and really worth visiting to see how the USA reacted to the nuclear threat from the then Soviet Union. The museum has numerous photos and memoribillia on display and the tour commences with a film about the Titan II missiles and where they were located. The actual tours take you around the top of the missile silo with the refuelling vehicles in place and then you do down through the blast doors into the underground control room and missile silo. Whilst in the control room, a simulated missile firing is carried out with visitors playing the key roles. There is also a shop in the museum where numerous souveniers can be purchased. This is definately one place not to miss.