San Diego Air & Space Museum
By day, the streamlined edifice looks like any other structure in the park; at night, outlined in blue neon, the round building appears—appropriately enough—to be a landed UFO. Every available inch of space in the rotunda is filled with exhibits about aviation and aerospace pioneers, including examples of enemy planes from the World Wars. In all, there are more than 60 full-size aircraft on the floor and hanging from the rafters. In addition to exhibits from the dawn of flight to the jet age, the museum displays a growing number of space-age exhibits, including the actual Apollo 9 command module. To test your own skills, you can ride in a two-seat Max Flight simulator or try out the Talon Racing simulator. Movies in the 3D/4D theater are included with admission.