Carew Castle in Pembrokeshire

You're standing at Carew Castle, Castell Caeriw in Welsh, in Pembrokeshire. First, take in the spot itself. The castle sits on a limestone bluff above the Carew inlet, part of the tidal estuary of the Milford Haven Waterway. No surprise, then, that people have been fortifying this place for at least two thousand years. Excavations here even turned up walls from an Iron Age fort.