You don't say how old your kids are. Myself and DW
have made two visits to Kennedy Space Center (KSC/NASA)
I don't know how long or how good they will be with
the budget cutbacks and cancellation of the shuttle and Aries
program ( man to the moon by 2015)
There is a plane museum near the KSC that we found by accident
that was interesting . Even DW who isn't really had a ball looking
at the old aircraft.