Penrhyn Castle is a country house in Llandygai, Bangor, Gwynedd, North Wales, in the form of a Norman castle. It was originally a medieval fortified manor house, founded by Ednyfed Fychan.

Thor’s Cave
Excavations in 1864–65 and 1927–35 found human and animal remains, stone tools, pottery, amber beads, and bronze items within Thor’s Cave and the adjacent Thor’s Fissure Cavern. The caves are estimated to have contained the burial sites of at least seven people. The finds


