I've just come back to this thread after several days - I think I must have missed the post nominating me to post a clue, then the thread slipped off the radar.
Ok, here goes. This has two definitions (because it can mean two different things) One is animal, the other mineral. The animal definition is probably easiest to pursue, but the mineral one may come more readily to hand.
Another clue a landmark edifice ( not a building, nobody lives in it) Another clue, everybody has heard of it and probably visited it ( people on this forum) 14 to go