What are the top unique vacation spots in Florida for 2019?

There's no such thing as a "unique" vacation spot, unless you're talking about visiting Saturn or something like that. No destination in Florida is "unique."

"Unique" means "one of a kind; unlike anything else." People go to Florida because it's warm, it's got beaches and theme parks, and they want to do things related to that. Therefore, you couldn't book a holiday there to do any of those things and call it "unique."

People have been going there to do the same thing for years now - they go to the Atlantic Coast beaches, the Gulf Coast beaches, they head to Central Florida to visit the theme parks, or they opt to do something like an Everglades tour. If they've got money they might head to Miami Beach or Key West. That's about all that Florida is good for anyway.