If you have read any of the books from the Harry Potter series or seen any of the movies, then you already know all about the Hogwarts Express. Even people who are not very familiar with the Harry Potter universe seem to at least know about the train. When Universal opened Hogsmeade, John and I immediately said that they should have built a working Hogwarts Express. The opening of Diagon Alley brought that wish to life with a fully functioning train that transports you from Diagon Alley in Universal Studios to Hogemeade in Islands of Adventure. You even get a chance to travel through Platform 9 3/4 and see some beloved characters on the way.