Nestled on the slopes of Oʻahu’s famous Diamond Head is an unexpected and opulent treasure: the estate-turned-museum of billionaire American heiress and philanthropist Doris Duke, once dubbed “the richest little girl in the world.” Of the many homes that the heiress owned, Shangri La is the only one that she built from the ground up and filled with a priceless, one-of-a-kind collection of Islamic art purchased from Iran, Turkey, Egypt, India and many other countries.