Saturn 5 Rocket
From the official guidebook:
The National Aeronautics and Space Administration and the Department of Defense sponsor this exhibit in the area surrounding the Hall of Science. Among the displays are a Project Mercury spaceship which has orbited the earth, a Gemini two-man spacecraft, a model of the Apollo, which will carry men to the moon, and a Mercury capsule in which youngsters may take a simulated space ride. Also shown are an X-15 rocket plane, lunar and interplanetary satellites, and Thor-Delta, Atlas and Titan II rockets. College science majors act as guides.