5 Sights in Gwynedd, United Kingdom (with Map and Images)

Bryn Cader Faner is a Bronze Age round cairn which lies to the east of the small hamlet of Talsarnau in the Ardudwy area of Gwynedd in Wales. The diameter is 8.7 metres (29 ft) and there are 18 thin jagged pillars which jut upwards from the low cairn. It is thought to date back to the late third millennium BC. The site was disturbed by 19th-century treasure-seekers, who left a hole in the centre indicating the position of a cist or a grave. Originally there may have been about 30 pillars, each some 2 metres (7 ft) long. However, before the Second World War, the British army used the site for gunnery practice and damaged many of the stones on the east side.

Wikipedia: Bryn Cader Faner (EN)

Tomen y Mur is a First Century AD Roman fort in Snowdonia, Gwynedd, Wales. The fortification, which lies on the slope of an isolated spur northeast of Llyn Trawsfynydd, was constructed during the North Wales campaigns of governor Gnaeus Julius Agricola in AD 78. The fort stood adjacent to the Roman road known as Sarn Helen. It was occupied until it was abandoned around AD 140. In the 11th century, the Normans reused part of the site for a motte.

Wikipedia: Tomen y Mur (EN)

Capel Salem is a Grade II listed building in the hamlet of Pentre Gwynfryn, near Llanbedr, Gwynedd, Wales. This Baptist chapel building is located about a mile up river of Llanbedr, on a ridge between the two valleys. It is just 300 yards (270 m) upstream from where the two rivers meet. The building was begun in 1826 and completed in 1851 but ten years later, it was extended to include the chapel house and to remodel the interior.

Wikipedia: Capel Salem, Llanbedr (EN)

Rhinog Fach is a mountain in Snowdonia, North Wales and forms part of the Rhinogydd. Technically, Rhinog Fach is a subsidiary summit of Y Llethr, but is a Marilyn. To the north lies its higher cousin Rhinog Fawr, separated by the shapely pass of Bwlch Drws Ardudwy.

Wikipedia: Rhinog Fach (EN)

Carn Fadryn, sometimes Carn Fadrun or Garn Fadryn, is a five-hectare Iron Age hillfort and is the name of the mountain on which the fort is situated. It lies in the centre of the Llŷn Peninsula, Gwynedd, and overlooks the village of Garnfadryn, Wales.

Wikipedia: Garn Fadryn (EN)