A few blocked out environments...
Ruined Hogwarts castle interior: https://streamable.com/vt5d6p
Burned Room of Requirement; https://streamable.com/iug0dt
Starting area when you first fall into the RoR: https://streamable.com/7rg051
Dollhouse from Hermione's memories: https://streamable.com/t1qmo0
Part of the Alice In Wonderland area of Hermione's memories: https://streamable.com/jomveg