I spoke at length with a man from Wiltshire about crop circles – who makes them and how, he doesn’t know, but he charges good money to look. “Some visitors,” he said with a twinkle ...

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.

Charlie heads to Wiltshire, home to ancient sites such ... He soon turns his investigation towards a far more recent phenomenon, crop circles, hoping to settle a debate that has plagued his ...