The RMS Queen Mary in Long Beach, California, remains one of the most haunted ships, with guests and crew reporting strange phenomena. During its time as a luxury liner and a wartime troopship, the Queen Mary had its share of tragedies, which some believe have left spirits aboard. Another eerie maritime story is of the SS Ourang Medan, a Dutch ship rumored to have its entire crew perish under mysterious circumstances, their faces frozen in terror. These ghostly vessels offer a chilling experience for anyone intrigued by the supernatural.