Ashford Castle is a luxurious five-star hotel situated along the shores of Lough Corrib in Cong, County Mayo. The beautiful century castle, complete with 83 guest rooms, dates back to 1228 and was once the Guinness family estate.
I found this picture with a caption saying this is door knobs found in coal. I believe it to actually be some type of coral or other formation under water. But would like some further advice to clarify what exactly it is! Any information will help!