The door to the Chamber of Secrets.
Bellatrix costume worn by Helena Bonham Carter.
The Riddle family tomb. We sat on this for 10 minutes to drink our butterbeer.
One of the pawns from the wizard chess scene in the Philosopher's Stone.
One of the outdoor sets: the Potter's House.
4 Privet Drive. The number on the front is not the original because Rupert Grint pried that off and kept it after filming.
An animatronic of one of the merpeople.
A head-mounted werewolf animatronic.
Fred and George's shop.
The scale model of Hogwarts. It's bigger than it looks. You can see some people on the extreme right of the shot.
They made a scale model of the Weasley's house (the Burrow). It took 14 weeks to make, and then was deliberately destroyed in 6 minutes to film the fire scene.
The last room has the wand boxes from Ollivanders. Each box has a distinct label that has the name of one of the people who worked on the films: 4000 of them!
Overall, it was excellent.