ABCDEFGHIJKLMNOPQRSTUVWY O Oakley Arms Ogmore Ogmore Castle Ogmore Vale Ogmore-by-Sea Old Beaupre Castle Old Castle upon Alun Old College, University of Wales, Aberys Old Colwyn Old Hall Camp Old Radnor Old Radnor Castle Oldcastle Onllwyn Overton Owain Glyndwrs Mount Oxwich Oxwich Castle Oystermouth Oystermouth Castle ABCDEFGHIJKLMNOPQRSTUVWY