It's the most famous ship in history—but how much do you actually know about the Titanic? From its impressive size to the decision that could’ve saved it from sinking, here are five surprising facts. Learn more about how technological advances are helping historians explore the Titanic: https://on.natgeo.com/3Y66Yrk #TitanicTheDigitalResurrection, a new National Geographic documentary, is now streaming on Disney and Hulu. | National Geographic