Well. it's now Thursday, and nothing's happened, so this is purely to keep the thread moving, ie if CapnChris posts something the "winner"of this gives way to the winner of CapnChris's one.
Looks like everyone has got bored with this. Homeshaw cave. Cap n Chris, you were the last person to get a correct answer, do you want to put anything up? Otherwise, open to anyone.
Not the Throne Room in Stoke, Bishop's Chair in Banwell or Hall of the Mountain Kings.
All good answers so far but not there yet. I thought this might have too easy, but perhaps not.