We were in Orlando a couple of weeks ago and we were on International Drive (one of the main roads near the theme parks) looking for a go-cart track, there are lots of them, but it started raining so we saw a Motorsports Museum (not sure of the name) and stopped in. Just a small building but if you like motorcyles, it was pretty impressive. A couple of cars, lots of old Race Rock t-shirts, some good art & posters, but lots of great bikes. Only takes a minute or two if need to fill some time.
Have Fun!