Inside the Harry Potter studio tour

Hogwarts Castle The 50-foot-long model of Hogwarts Castle that features 2,500 lights, hinged doors, miniature birds and live plants. The castle display completes a day-to-night cycle every four minutes. (AP)

Hogwarts' Great Hall The Great Hall of Hogwarts School of Witchcraft and Wizardry is the first room on the tour and visitors are allowed to walk around the room to see the film set close up.

Headmaster's Office The headmaster's office at the Hogwarts School of Witchcraft and Wizardry. (AFP)

Grand Opening March 31, 2012: Actors Bonnie Wright and Rupert Grint attend the opening of The Making of Harry Potter in Watford. (AFP)

Diagon Alley Visitors can down the cobbled street of Diagon Alley. (AFP)

The Weasley Kitchen The Weasley kitchen showcases the craftsmanship of the special effect props including Molly Weasley's self-washing frying pan, knitting needles and chopping boards. (Warner Bros.)

Professor Umbridge's Office The Professor's office is filled with special touches, like the incredibly detailed hand-painted cat porcelain plates each made especially for the films. (Warner Bros.)

Professor Snape's Potions Classroom Visitors can peer into Professor Snape's potions class, just one set where the eight films were shot. (Warner Bros.)