Ronald Reagan Minuteman Missile State Historic Site Cooperstown, ND.
The Oscar-Zero Missile Alert Facility and the November-33 Launch Facility are all that remain of the 150 Minuteman II intercontinental ballistic missile launch sites that were once spread out over a 6,500-square-mile area around the Grand Forks Air Force Base, North Dakota (yes, the same number of missiles as in South Dakota). Guides are here to take you to the topside facility or down the elevator to the Launch Control Facility. This is basically the same tour and has the same things to see as the South Dakota site so if you went to one you can skip the other.
Hours: See websiteVisit museum website