St Trillo
Llandrillo yn Rhos, Clwyd
Mae’r adeilad syml, to carreg, bach iawn hwn, yn wyth troedfedd o uchder ac un droedfedd ar ddeg o hyd; mae ei waliau o drwch dwy droedfedd ac o dan ei allor, mae ffynnon sanctaidd St Trillo.
Now a ruin, Furness Abbey was once the second most powerful Cistercian monastery in Britain, after Fountains Abbey in Yorkshire. The Abbey is mentioned in William Wordsworth's poem The Prelude, and J M W Turner made a number of etchings of the Abbey. The site is reputedly haunted, and it is believed there is a tunnel running underneath the Abbey linking it to Piel Castle and Dalton Castle.