Mae Carchar Rhuthun; Amgueddfa Dreftadaeth a Morwrol Aberdaugleddau; Bwthyn Penrhos Sir Benfro; Byd Mary Jones; Amgueddfa’r Ffiwsilwyr Brenhinol Cymreig, Caernarfon a Neuadd Gymunedol a Chanolfan Ymwelwyr Myddfai ac Amgueddfa Forwrol Llŷn ymhlith y rhai y dyfarnwyd gwobr Trysor Cudd iddynt.
Ruthin Gaol; Milford Haven Heritage & Maritime Museum; Penrhos Cottage Pembrokeshire; Byd Mary Jones world; Royal Welch Fusiliers Museum, Caernarfon and Myddfai Community Hall & Visitor Centre and Llyn Maritime Museum / Amgueddfa Forwrol Llŷn are among those awarded a Hidden Gem accolade.