Kennedy Space Center, Daytona Beach
Kennedy Space Center was created in 1958 and NASA bought much of the land in 1962. In 1963 the site was named after President Kennedy shortly after his death.
I visited Kennedy Space Center in 1985, when it was still a relatively new facility and less than a year before the Challenger disaster.
I spent a day at the Kennedy Space Center and had a great time. It's a little pricey to go, but you won't get a behind the scenes view of NASA anywhere other than NASA itself so you really don't have anything to lose. The Close Up tour is great because if you go to the top of the tower you get an awesome view of the Space Shuttle Launch Pad. When I was there I was lucky enough to see a shuttle getting ready for take-off and it really was a brilliant sight. There are several other things going on around the complex such as astronaut talks, an IMAX theatre, and some interactive devices. My favorite part of the whole thing was when we all went into a room and "watched" the take-off of the Apollo 11. It was a great feeling and they did a good job of making you feel like you were really there and part of it. Oh, and for those of you who are big spenders, for $225 you can get an astronaut training experience...)