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.
Yn cael ei hadnabod fel un o’r safleoedd archeolegol mwyaf hydolus ym Mhrydain, adeiladwyd yr heneb 5,000-mlwydd-oed unwaith i warchod a thalu parch at weddillion y cyndeidiau.