Like Royal Castle, Burger King was a miami born institution. The first Burger King hamburger stand opened at 3090 NW 36th Street in an old area of Miami known as Allapatah. Burgers and shakes were 18 cents each. The Whopper, which appeared in 1957, sold for 37 cents. However, I remember that the founders actually invented the Whopper at their diner on Brickell Avenue a few blocks south of the current Brickell Avenue Bridge. I found this information on a tribute to Jim Mclamore, who with Dave Edgerton founded Burger King. It confirms my memory that he had a diner on Brickell that sold the first "whoppers".
"McLamore, during his early months in Florida's warm climate, learned an expensive lesson about the seasonality of business in the Sunshine State. Captivated by the overflow crowds at the Brickell Bridge restaurant, he immediately proceeded to buy the operation, only to discover that the logjam of customers during the winter months literally slowed to a trickle in the summer. Just a few blocks from Brickell Bridge, Edgerton was managing a restaurant at the Howard Johnson hotel. The two struck up a friendship and decided to take a chance on a franchise concept begun in Jacksonville. Called "Insta-Burger King," it featured hamburgers cooked via a piece of equipment called the Insta-Burger Broiler -- a revolutionary system that used twin heating elements along a conveyor line and was capable of cooking more than 400 hamburgers and buns per hour. However, problems developed with the Insta-Broiler when burger juices began dripping onto the heating elements, causing them to corrode. Edgerton and McLamore redesigned the system in such a way that it transported the burgers horizontally over gas flames, giving the customer a flame-broiled product. The pair subsequently arranged for the Sani-Serv company of Indianapolis to manufacture the new prototype for them. Shortly thereafter they dropped the "Insta" prefix from the name and began promoting Burger King as the "Home of The Whopper."