- - - towers ,

you can't access the ravenclaw or gryffindor towers from here, but you can access the astronomy tower. a large spiraling staircase winds up directly above the front of the castle into what is known as the astronomy tower, where those classes are held. if you know where you're going, you might stumble across the headmaster's office, although that happens to be one of the most heavily guarded passwords in the school. finally, there's the west tower, where you'll find the owlry.