If you grew up in Miami in the 50's, 60's or 70's, Royal Castle was the place to go for a Birch Beer and tiny little burgers grilled with tons of onions. At one time there were 100s of these diners throughout Miami and Dade County. Most looked just like this last survivor on NW 79th Street and 27 Avenue. Royal Castles were unique to Miami and resembled the White Castles from up north. How they died out remains a mystery as most people have fond memories of them. I suspect that the other competing chain of Burger King, also from Miami, and the other fast food franchises of today just proved to be too much competition. Also, I think the fact that they were independently owned and operated had something to do with it. The creator of the chain apparently went out of business making it harder to stay in business. Its a shame as most old miamians would tell you they would die to taste that birch beer and belly bombers today. Most don't even know there is still one alive and well. If you get down to Miami you should try it! The 2007 Miami New Times still rates it the best hamburger in Miami!