Starting on 15 July, Harry Potter fans will be able to explore Hogsmeade and Hogswart Castle, including Dumbledore's Office and the Defence Against the Dark Arts classroom. Moving portraits and the Sorting Hat may speak to visitors as they journey through the castle. In Hogsmeade, fans will find shops, the Three Broomsticks tavern, and more, and outside of the castle is the Flight of the Hippogriff roller coaster.
This is going to be the second of 3 Harry Potter attractions; the first opened in Florida in 2007, and another is still under construction at the Universal Studios Hollywood park. You can find more details, including a map and a list of all of the attractions, on the Universal Studios website.