Take an advanced look at "The Wizarding World of Harry Potter” at Universal Studios Hollywood in California before it opens to the public on April 7, 2016. See Hogwarts Castle, a Defence Against the Dark Arts classroom, Hogsmeade village and more. Harry Potter, characters, names and related indicia are trademarks of and © Warner Bros. Entertainment Inc. Harry Potter Publishing Rights © JKR. (s16) ©2016 Universal Studios. All Rights Reserved.