From the BBC Radio4 website....."Wildlife sound recordist Chris Watson's evocative and powerful sound portrait of Dunstanburgh Castle in Northumberland." Listen here
Personal note....I remember (not one of my best decisions....given my tendency for vertigo) climbing the spiral staircase on the right of the gatehouse once to take in the (probably!) stunning view. I had to come down step by step, on my backside, with my eyes shut and breathing heavily....not very dignified!