Tinkinswood Burial Chamber - Credit: Wikimedia Commons
Tinkinswood or its full name Tinkinswood Burial Chamber (), also known as Castell Carreg, Llech-y-Filiast and Maes-y-Filiast, is a megalithic burial chamber, built around 6,000 years ago, during the Neolithic period, in the Vale of Glamorgan, near Cardiff, Wales. Read more on Wikipedia
Source: en.wikipedia.org