Aerospace aficionados won't want to miss this facility on Peterson Air Force Base on the southern fringe of Colorado Springs, but those without a particular interest should probably steer clear of this museum. The collection features more than 25 aircraft and missiles from the 1950s onward, including an exhibit on Intercontinental Ballistic Missiles (ICBMs) and a Lockheed F-94 C Starfire. Note: Visitors must have a military ID or give administration at least 24 hours’ advance notice to get on the base (72 hours for Sat.). Expect to spend about an hour here.