This metal, sculpted face is in the sculpture garden at Burghley House near Stamford, Lincolnshire. It is one of the best of its kind that I've seen. I particularly liked the way it appeared to grow from, and merge with, the surrounding vegetation, and how it took on a fresh appearance depending on the angle from which it was seen.
photo © T. Boughen Camera: Olympus OMD E-M10