A round or triangular window can be a perfect fit for the attic.
Place a mirror by the window to harness reflections and brighten up the room.
Having a wall shelf high up on the wall is a great way to optimize the decor in an attic apartment.
The rooftop terrace adjacent to the attic can become a tasteful extra space during the summer.
To hang curtians from the ceiling works wonders for the perceived ceiling height of the attic.