One of the most enchanting thing about Hogwarts has got to be the feasts. For one thing, they take place in the Great Hall, which is always decorated with impressive floating decorations.
After a welcome feast in the hall, a prefect escorts the young'uns to their dorms via the magic stairwell.
It's an impressive enough stairwell as it is, set inside an enormous atrium bedecked with magic talkative paintings. Charming and exciting, old-worldy yet familiar, it's like a homely fantasy fortress come to life, and it will become a permanent, familiar fixture with the Harry Potter movie-verse.