Sunnylands cacti desert oasis is an extension of the historic estate of American publisher and diplomat Walter Annenberg and his wife, businesswoman Leonore Annenberg. The philanthropic Annenbergs used the estate as their California winter retreat from the late ’60s, where they hosted guests including Queen Elizabeth II, Richard Nixon, Frank Sinatra and Truman Capote. The trust in their name ensures the gardens—commissioned by Mrs Annenberg before her death in 2009—are accessible to all.