King Mohammed was one of the first heads of state to visit Disneyland. He's pictured with Walt Disney during his visit.Walt Disney gave the visiting monarch a personal tour through the amusement park, and he even took him on a few rides.They rode on an Italian boat that runs on rails around a miniature Matterhorn mountain, ending with a splash into a pool of water.After the Danish constitution was amended to allow women in the line of succession, Princess Margrethe of Denmark became queen in 1972 and continues to reign today.Emperor Haile Selassie of Ethiopia was in town to deliver a speech at UCLA, so naturally he stopped at Disneyland to ride It's A Small World.Disneyland's Ambassador to the World Kathy Smith, second from left, joined Emperor Hirohito, right, and Empress Nagako during the royal couple's visit to Disneyland in Anaheim, California.Tokyo Disneyland opened in 1983.Today, Princess Beatrice travels with celebrities like Karlie Kloss and Ellie Goulding.Eugenie celebrated her 11th birthday by riding the park's attractions and meeting characters like Mickey and Minnie Mouse.Princess Diana is in the back row on the right. Prince Harry is sitting in the front row on the left.At the time, an Orlando resident, Marilyn Emrick, told the Orlando Sentinel that Diana seemed to be enjoying herself.She looked like a typical tourist walking around Disney World, Emrick said. She was relaxed. In an HBO documentary called Diana, Our Mother: Her Life and Legacy, Prince Harry remembered his mother as a total kid through and through.One of her mottos to me was 'You can be as naughty as you want, just don't get caught,' he said.Prince William, then 11, braced for the 50-foot drop.