Looking at the extent of stone circles in Wales, the growth of Celtic hill forts and what they reveal about the changing society of that time.

Evidence of two previously unknown prehistoric stone circles has been uncovered in southern England—with one site seemingly displaying similarities to the early phase of the iconic Stonehenge.

Charlie heads to Wiltshire, home to ancient sites such as Stonehenge, Avebury and the ... towards a far more recent phenomenon, crop circles, hoping to settle a debate that has plagued his family ...