This guide will let you know where to find all the landmarks for Arthur’s treasure map in Hogwarts Legacy.
You will need to make your way to the Dark Arts Tower and then head over to the double-horned rhino skeleton in the hall. It is basically the first landmark.
After that, head down the stairs, then take a quick right and go out into the courtyard. Move outside from there and you will find the dragon statue which is the second clue.
Just keep moving all the way past a lady and enter the door. Once inside, you need to head upstairs and use your Leviosa to reveal the secret. After that, you will get your treasure.