The National Air and Space Museum is a center for the history and science of aviation, spaceflight, planetary science, terrestrial geology, and geophysics. It is the fifth most visited museum in the world (the second most visited in the U.S.), and contains the Apollo 11 Command Module Columbia, the Friendship 7 capsule, the Wright brothers’ Wright Flyer airplane, and Lindbergh’s Spirit of St. Louis. The virtual tour offers a 360-degree walk-through of the entire museum.