Well, I've got a lot of family in Florida and I love visiting there to fish. The interior of the state has some really awesome spring-fed rivers. Check out Rainbow River and Crystal River in Florida.
I've never gone fishing in another country but there is a place in Argentina I'd really like to visit. It's called Jurassic Lake. It's pretty much completely un-inhabited and there are HUGE rainbow trout in it. Check out http://www.wherewisemenfish.com/_Argent … assic_Lake
Besides all that, there are a few local streams near where I live that I visit quite often...but nothing worth mentioning. Hope that helps.