The Astronaut Hall of Fame houses the world's largest collection of astronaut memorabilia, as well as displays, exhibits and tributes dedicated to the heroes of Mercury, Gemini and Apollo. The Exhibit Hall houses an historic collection of spacecrafts, including a Mercury Sigma 7 capsule, a Gemini training capsule and an Apollo 14 command module. In the "Simulator Station," realistic astronaut training simulators allow guests to feel the pressure of four times the force of gravity, ride a rover across Mars, and land a Space Shuttle.