well it isn't huge as they go, but it's huge for what I'm used to!
We just got rid of a piano and so I've moved the cupboard that was in the fireplace into where the piano was.
Fireplace is about 4ft across, 2ft deep and at least 5ft high. (think 'diagon alley'!)
So aside from putting the children in it one by one and persuading them to say some magic and disappear, what can I use it for?