Caer Gai

Caer Gai - Credit: Wikimedia Commons

Caer Gai (also Caer-gai) is a Grade II listed Roman fort in the district of Penllyn, Gwynedd, Wales, UK. It is located about 1 mile or 1.6 km north of the village of Llanuwchllyn, and the same distance west of Lake Bala. Read more on Wikipedia

type: ancient site
date from: 1st - 2nd centuries CE

Source: en.wikipedia.org