The Houston Space Center is a tourist service designed for tourists. It is the most tourist attraction in the Houston area. It contains a lot of precious physical exhibits (such as return capsules, lunar rocks), introductions to the moon, high-tech demonstrations, etc. Visitors can touch the rocks collected on the moon with their hands, watch films on spaceflight, moon landing and interstellar travel (three films totaling 95 minutes), and see rockets on the moon. It takes four to six hours to visit all. If you have a short time, just take a picture next to the big rocket, you don't have to spend $20 to go to the space center, go directly to the rocket park of the space center, no money. A short walk from the rocket park is where the press conference was held after the moon landing. The place is outside, everything is arranged as it is.