We are starting to renovate our attic and one of the rooms has a low narrow alcove (with - helpfully - a fireplace at the end) in it. There is a photo of it on my profile.
It's too deep to make it a wardrobe and too low to walk into it (approx 8 ft long, 5 ft high at its highest and 7 ft wide) and I really don't know what to do with it. Would welcome any inspiration from someone more creative than me !