There are of course many theme parks and tourist attractions, however if you wish to get away from that and enjoy something a little less crowded, maybe one of these suggestions will be interest:
– Visit the town of Celebration, kept ultra clean and almost like a movie set, not far from Disney
– Visit the town of Winter Park just north of downtown Orlando, a favorite among locals and visitors
– Take an air boat ride on Lake Jessup, Boggy Creek or others and see alligators in their natural habitat
– Canoe on the river from Wekiva Springs State Park and see wildlife in natural habitat
– Go to Cirque du Soleil in Downtown Disney if you have not done so
– Visit Kennedy Space Center (on the Atlantic Coast, but not far from Orlando)
Feel free to send me an email and let me know what interests you and I will try to make some suggestions in the that light.