Bryn Celli Ddu is one of the most famous archaeological sites in Britain, the 5,000-year-old tomb was once constructed to protect and pay respect to the remains of ancestors.
Mae Bryn Celli Ddu yn un o'r safleoedd archaeolegol enwocaf ym Mhrydain, adeiladwyd y beddrod 5,000 oed ar un adeg i amddiffyn a thalu parch i weddillion hynafiaid.