<P> In 2017, a Forbidden Forest expansion was added to the Warner Bros. Studio Tour London - The Making of Harry Potter, enabling fans to explore it for the first time . </P> <P> Most exterior scenes were shot on location at Alnwick Castle, but views of the exterior of the entire school were created from shots of Durham Cathedral with a digital spire added to the towers . Durham Cathedral also served as a set for Hogwarts interiors . </P> <P> The Hogwarts Express is a train that carries students non-stop from Platform 93⁄4 at King's Cross station in London to Hogsmeade Station, near Hogwarts . Prefects of the school ride in a separate carriage near the front of the train . The compartments on the train appear to be lettered; in Half - Blood Prince, the "Slug Club" meets in compartment C . </P> <P> The train began use in the 1850s . Before that, students used to reach Hogwarts on brooms or enchanted carriages . </P>

What are the personalities of the hogwarts houses