A number of former Titan-II installations have been making more news lately as owners work on the sites or they come up for sale. There were 54 of these spread out across Arizona, Kansas, and Arkansas with the last sites deactivating in the mid-1980s (as opposed to the mid-1960s like those above). The access portal descends into a large rectangular space (once with stairs and an elevator, I understand these were removed) with one area going to the Launch Control Center capsule and the other to the silo. The silos themselves were demolished with the LCCs generally being left alone. A Titan-II site is open for tours at the Titan Missile Museum in Green Valley, Arizona.