Warner Bros. Studios Tour London – The Making of Harry Potter is a public attraction in Leavesden in southeastern England. Not to be confused with the Wizarding World of Harry Potter of Universal Studios theme parks, it is a permanent exhibit offering an authentic behind-the-scenes glimpse of the Harry Potter films. It is situated inside Warner Bros. Studios, Leavesden in Leavesden, near Watford, in southwest Hertfordshire. Though the studios are still active, the tour is actually contained in two soundstages, J and K, and is kept separate from the rest of the complex. Warner Bros. Studios Tour London is quite possibly the only permanent filmmaking exhibit of its size in the world. It opened to the public in 2012 and since then has welcomed up to 6,000 visitors a day during peak times. TripAdvisor reported that Warner Bros. Studio Tour London – The Making of Harry Potter has been the highest-rated attraction worldwide every year since the tour opened. Wikipedia