Elevated porch. Here's what I really like about this. With more "heavy duty" wood and accessories the stairs make it an accessible space for me to go with my grandkids as much of a place for my teens to hangout with their friends.
I've seen several variations of these hanging corner shelves available, including ones with inbuilt picture frames. I think the panelled parts against the wall make it more of a feature so it's a nice solution for a small empty corner. It's also an idea that you could easily DIY.