The 105,000-square-foot, Smithsonian-affiliated museum, which was voted one of the Eight Wonders of Kansas in 2008, boasts the second-largest collection of space artifacts in the United States (behind only the National Air and Space Museum in Washington, D.C.). An all-day mission pass gets you access to all the museum’s treasures: the Carey IMAX Dome Theater, Justice Planetarium, Dr. Goddard’s Lab, and the Hall of Space Museum. Start by strolling through the Hall of Space, where notable space souvenirs such as the command module from Apollo 13 and the Liberty Bell 7 Mercury capsule chronicle mankind's courtship with the cosmos. Then explore Dr. Goddard’s Lab, a replica of the 1930s laboratory where Dr. Robert Goddard pioneered modern rocketry. Explosive reenactments of the doctor's attempts to find the right rocket fuel, figure out how to circumvent gravity, and lick his elbows are performed daily to delight children and their copilots. Click here to download a basic museum itinerary.