The places to sight see are endless, it depends on what you are interested in. For example if you want to venture further North, there is the Worlds Largest FREE (no cost for admission) Aviation Museum at Wright Patterson Air Force Base in Dayton Ohio. There is the Kennedy Space Center. If you are going to be here in July there is the EAA Air Venture Show in Oshkosh Wisconsin, In April they hold a EAA show in Florida called Sun N Fun (east of Tampa).
If you like historic sites, one that I can highly recommend is the Civil War Prison located in Andersonville Georgia, this is probably one of the most humbling civil war historic sites in the United States. Charleston South Carolina is another interesting city to visit, or Savanah Georgia.
Post what you are interested in seeing and I'm sure that we can recommend some good places.
Mike