Sunnylands Estate

Completed in 1966, this 25,000-square-foot monolith was designed by modernist master A. Quincy Jones as a winter home for Walter and Leonore Annenberg. The couple welcomed U.S. President Dwight D. Eisenhower to the premises that same year. The residence has gone on to host countless other dignitaries, statesmen and celebrities in the years since, including Queen Elizabeth and Prince Philip, who visited in 1983, and crooner Frank Sinatra, who wed his fourth wife, Barbara, there in 1976. One of the only properties on this list open to the public, Sunnylands offers a variety of daily tours of the estate’s interiors and vast grounds. Tickets sell out quickly, so be sure to plan your visit far in advance.