 In its 80+ years of existence, the Hotel Nacional has had many important guests, including artists, actors, athletes and writers such as Winston Churchill, the Duke and Duchess of Windsor, Jimmy Carter, Frank Sinatra, Ava Gardner, Rita Hayworth, Mickey Mantle, Johnny Weissmuller, Buster Keaton, Jorge Negrete, Agustín Lara, Rocky Marciano, Tyrone Power, Rómulo Gallegos, Errol Flynn, John Wayne, Marlene Dietrich, Gary Cooper, Marlon Brando, Ernest Hemingway, Yuri Gagarin, scientist Alexander Fleming, Minnesota (United States) Governor Jesse Ventura, and innumerable Ibero-American Heads of State and European monarchs.The Santa Clara Battery was built on top of a hill which was home to one of the most historic caves on the island.The hill of Taganana, located in the coastal outcrop of Punta Brava near the cove of San Lázaro took its name from a cavern in the Canary Islands where the princess Guanche Cathaysa took refuge.