A History of Ancient Britain Special: Priests of Orkney

One of the most significant and jaw-dropping ancient discoveries ever made is happening now. In the far North of Scotland, at the heart of one of the most important sacred sites of the ancient world, archaeologists are unearthing an amazing 5,000 year-old religious temple complex, the first painted wall art ever seen from the Stone Age in Europe and the precious objects that the builders left. This documentary asks: who built these great monuments? How were they used? And what did these people believe?